notebooks/DesignPatterns.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import json\n",
    "with open('cred.json') as f:\n",
    "    creds = json.load(f)\n",
    "\n",
    "connection_string = \"mysql://{user}:{password}@{host}\".format(**creds)\n",
    "\n",
    "import pymysql \n",
    "pymysql.install_as_MySQLdb()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "%load_ext sql\n",
    "%config SqlMagic.autocommit=True\n",
    "%sql $connection_string"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Transactions\n",
    "\n",
    "- A = Atomic\n",
    "- C = Consistent\n",
    "- I = Isolated\n",
    "- D = Durable"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "from faker import Faker"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "fake = Faker()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "[2022-11-08 11:21:52,567][INFO]: Connecting dimitri@db.ust-data-sci.net:3306\n",
      "[2022-11-08 11:21:53,609][INFO]: Connected dimitri@db.ust-data-sci.net:3306\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Proceed to delete entire schema `dimitri_bank`? [yes, No]: yes\n"
     ]
    }
   ],
   "source": [
    "import datajoint as dj\n",
    "schema = dj.Schema('dimitri_bank')\n",
    "schema.drop()\n",
    "schema = dj.Schema('dimitri_bank')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Account(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    account_number : int\n",
    "    ---\n",
    "    customer_name : varchar(60) \n",
    "    balance : decimal(9, 2)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "Account.insert(\n",
    "    dict(\n",
    "        account_number=fake.random.randint(10_000_000, 99_999_999),\n",
    "        customer_name=fake.name(),\n",
    "        balance=fake.random.randint(0, 100_000_00)/100)\n",
    "        for i in range(100))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">account_number</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">customer_name</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">balance</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>12050569</td>\n",
       "<td>Shannon Santos</td>\n",
       "<td>6679.10</td></tr><tr><td>12585078</td>\n",
       "<td>Elizabeth Sherman</td>\n",
       "<td>81401.22</td></tr><tr><td>12922010</td>\n",
       "<td>Gary Cummings</td>\n",
       "<td>82458.58</td></tr><tr><td>14429509</td>\n",
       "<td>Lisa Garcia</td>\n",
       "<td>62684.81</td></tr><tr><td>16865880</td>\n",
       "<td>Christy Jones</td>\n",
       "<td>36643.26</td></tr><tr><td>16891629</td>\n",
       "<td>Alfred Potter</td>\n",
       "<td>25586.46</td></tr><tr><td>17183102</td>\n",
       "<td>Chad Nguyen Jr.</td>\n",
       "<td>8421.74</td></tr><tr><td>18025005</td>\n",
       "<td>Andrew Wilson</td>\n",
       "<td>50134.35</td></tr><tr><td>18104044</td>\n",
       "<td>Jody Collins</td>\n",
       "<td>43370.19</td></tr><tr><td>18369903</td>\n",
       "<td>Ronald Stokes</td>\n",
       "<td>72475.77</td></tr><tr><td>20536886</td>\n",
       "<td>Elizabeth Murphy</td>\n",
       "<td>26302.92</td></tr><tr><td>21122881</td>\n",
       "<td>John Mcdonald</td>\n",
       "<td>66577.76</td> </tr> </tbody>\n",
       "        </table>\n",
       "        <p>...</p>\n",
       "        <p>Total: 100</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*account_numbe customer_name  balance     \n",
       "+------------+ +------------+ +----------+\n",
       "12050569       Shannon Santos 6679.10     \n",
       "12585078       Elizabeth Sher 81401.22    \n",
       "12922010       Gary Cummings  82458.58    \n",
       "14429509       Lisa Garcia    62684.81    \n",
       "16865880       Christy Jones  36643.26    \n",
       "16891629       Alfred Potter  25586.46    \n",
       "17183102       Chad Nguyen Jr 8421.74     \n",
       "18025005       Andrew Wilson  50134.35    \n",
       "18104044       Jody Collins   43370.19    \n",
       "18369903       Ronald Stokes  72475.77    \n",
       "20536886       Elizabeth Murp 26302.92    \n",
       "21122881       John Mcdonald  66577.76    \n",
       "   ...\n",
       " (Total: 100)"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Account()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [],
   "source": [
    "keys =Account.fetch('KEY')\n",
    "account1 = fake.random.choice(keys)\n",
    "account2 = fake.random.choice(keys)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "({'account_number': 71167941}, {'account_number': 45255856})"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "account1, account2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "def transfer(account1, account2, amount):\n",
    "    \n",
    "    with Account.connection.transaction:\n",
    "\n",
    "        current_balance = (Account & account1).fetch1('balance')\n",
    "        if current_balance < amount:\n",
    "            raise RuntimeError('Insufficient funds')\n",
    "\n",
    "        Account.update1(dict(account1, balance=float(current_balance) - amount))\n",
    "\n",
    "        b = (Account & account2).fetch1('balance')\n",
    "        assert False\n",
    "        \n",
    "        Account.update1(dict(account2, balance= float(b) + amount))\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">account_number</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">customer_name</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">balance</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>45255856</td>\n",
       "<td>Chad Atkins</td>\n",
       "<td>3900.08</td></tr><tr><td>71167941</td>\n",
       "<td>Cody Morgan</td>\n",
       "<td>21836.97</td> </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 2</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*account_numbe customer_name  balance     \n",
       "+------------+ +------------+ +----------+\n",
       "45255856       Chad Atkins    3900.08     \n",
       "71167941       Cody Morgan    21836.97    \n",
       " (Total: 2)"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Account & [account1, account2]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "ename": "AssertionError",
     "evalue": "",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mAssertionError\u001b[0m                            Traceback (most recent call last)",
      "Input \u001b[0;32mIn [13]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mtransfer\u001b[49m\u001b[43m(\u001b[49m\u001b[43maccount1\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43maccount2\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;241;43m100.00\u001b[39;49m\u001b[43m)\u001b[49m\n",
      "Input \u001b[0;32mIn [11]\u001b[0m, in \u001b[0;36mtransfer\u001b[0;34m(account1, account2, amount)\u001b[0m\n\u001b[1;32m      9\u001b[0m Account\u001b[38;5;241m.\u001b[39mupdate1(\u001b[38;5;28mdict\u001b[39m(account1, balance\u001b[38;5;241m=\u001b[39m\u001b[38;5;28mfloat\u001b[39m(current_balance) \u001b[38;5;241m-\u001b[39m amount))\n\u001b[1;32m     11\u001b[0m b \u001b[38;5;241m=\u001b[39m (Account \u001b[38;5;241m&\u001b[39m account2)\u001b[38;5;241m.\u001b[39mfetch1(\u001b[38;5;124m'\u001b[39m\u001b[38;5;124mbalance\u001b[39m\u001b[38;5;124m'\u001b[39m)\n\u001b[0;32m---> 12\u001b[0m \u001b[38;5;28;01massert\u001b[39;00m \u001b[38;5;28;01mFalse\u001b[39;00m\n\u001b[1;32m     14\u001b[0m Account\u001b[38;5;241m.\u001b[39mupdate1(\u001b[38;5;28mdict\u001b[39m(account2, balance\u001b[38;5;241m=\u001b[39m \u001b[38;5;28mfloat\u001b[39m(b) \u001b[38;5;241m+\u001b[39m amount))\n",
      "\u001b[0;31mAssertionError\u001b[0m: "
     ]
    }
   ],
   "source": [
    "transfer(account1, account2, 100.00)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">account_number</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">customer_name</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">balance</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>45255856</td>\n",
       "<td>Chad Atkins</td>\n",
       "<td>3900.08</td></tr><tr><td>71167941</td>\n",
       "<td>Cody Morgan</td>\n",
       "<td>21836.97</td> </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 2</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*account_numbe customer_name  balance     \n",
       "+------------+ +------------+ +----------+\n",
       "45255856       Chad Atkins    3900.08     \n",
       "71167941       Cody Morgan    21836.97    \n",
       " (Total: 2)"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Account & [account1, account2] "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      " * mysql://dimitri:***@db.ust-data-sci.net\n",
      "0 rows affected.\n",
      "1 rows affected.\n"
     ]
    },
    {
     "data": {
      "text/html": [
       "<table>\n",
       "    <tr>\n",
       "        <th>Table</th>\n",
       "        <th>Create Table</th>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>account</td>\n",
       "        <td>CREATE TABLE `account` (<br>  `account_number` int(11) NOT NULL,<br>  `customer_name` varchar(60) NOT NULL,<br>  `balance` decimal(9,2) NOT NULL,<br>  PRIMARY KEY (`account_number`)<br>) ENGINE=InnoDB DEFAULT CHARSET=latin1</td>\n",
       "    </tr>\n",
       "</table>"
      ],
      "text/plain": [
       "[('account', 'CREATE TABLE `account` (\\n  `account_number` int(11) NOT NULL,\\n  `customer_name` varchar(60) NOT NULL,\\n  `balance` decimal(9,2) NOT NULL,\\n  PRIMARY KEY (`account_number`)\\n) ENGINE=InnoDB DEFAULT CHARSET=latin1')]"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "%%sql\n",
    "\n",
    "use dimitri_bank;\n",
    "\n",
    "SHOW CREATE TABLE account;"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {
    "scrolled": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      " * mysql://dimitri:***@db.ust-data-sci.net\n",
      "100 rows affected.\n"
     ]
    },
    {
     "data": {
      "text/html": [
       "<table>\n",
       "    <tr>\n",
       "        <th>account_number</th>\n",
       "        <th>customer_name</th>\n",
       "        <th>balance</th>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>12050569</td>\n",
       "        <td>Shannon Santos</td>\n",
       "        <td>6679.10</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>12585078</td>\n",
       "        <td>Elizabeth Sherman</td>\n",
       "        <td>81401.22</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>12922010</td>\n",
       "        <td>Gary Cummings</td>\n",
       "        <td>82458.58</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>14429509</td>\n",
       "        <td>Lisa Garcia</td>\n",
       "        <td>62684.81</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>16865880</td>\n",
       "        <td>Christy Jones</td>\n",
       "        <td>36643.26</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>16891629</td>\n",
       "        <td>Alfred Potter</td>\n",
       "        <td>25586.46</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>17183102</td>\n",
       "        <td>Chad Nguyen Jr.</td>\n",
       "        <td>8421.74</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>18025005</td>\n",
       "        <td>Andrew Wilson</td>\n",
       "        <td>50134.35</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>18104044</td>\n",
       "        <td>Jody Collins</td>\n",
       "        <td>43370.19</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>18369903</td>\n",
       "        <td>Ronald Stokes</td>\n",
       "        <td>72475.77</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>20536886</td>\n",
       "        <td>Elizabeth Murphy</td>\n",
       "        <td>26302.92</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>21122881</td>\n",
       "        <td>John Mcdonald</td>\n",
       "        <td>66577.76</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>22346493</td>\n",
       "        <td>Angela Cook</td>\n",
       "        <td>8726.90</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>23580748</td>\n",
       "        <td>Phillip Phillips</td>\n",
       "        <td>87117.86</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>24304691</td>\n",
       "        <td>Gary Davis</td>\n",
       "        <td>61267.87</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>29585828</td>\n",
       "        <td>Sheila Mack</td>\n",
       "        <td>3143.64</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>31867228</td>\n",
       "        <td>Matthew Jensen Jr.</td>\n",
       "        <td>10613.30</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>32398369</td>\n",
       "        <td>Kathryn Bush</td>\n",
       "        <td>86954.62</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>32491608</td>\n",
       "        <td>Christina Peterson</td>\n",
       "        <td>96449.55</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>32606812</td>\n",
       "        <td>Shannon Melton</td>\n",
       "        <td>56821.76</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>32800520</td>\n",
       "        <td>Desiree White</td>\n",
       "        <td>5503.59</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>35601316</td>\n",
       "        <td>Brittney Wright DDS</td>\n",
       "        <td>85239.41</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>36448533</td>\n",
       "        <td>Charles Rivers</td>\n",
       "        <td>28255.00</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>37607221</td>\n",
       "        <td>Joseph Rojas</td>\n",
       "        <td>67438.57</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>38275461</td>\n",
       "        <td>Jessica Cervantes</td>\n",
       "        <td>12397.28</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>38310940</td>\n",
       "        <td>Bryan Mcmahon</td>\n",
       "        <td>31183.65</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>38476377</td>\n",
       "        <td>Kathleen Horton</td>\n",
       "        <td>24121.70</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>41136819</td>\n",
       "        <td>Mario Anderson</td>\n",
       "        <td>69689.05</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>41353087</td>\n",
       "        <td>Amber Wallace</td>\n",
       "        <td>55862.85</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>42185083</td>\n",
       "        <td>Gina Murillo</td>\n",
       "        <td>47656.73</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>42576215</td>\n",
       "        <td>Mary Barnes</td>\n",
       "        <td>82977.61</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>43023148</td>\n",
       "        <td>Benjamin Richardson</td>\n",
       "        <td>19640.96</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>43256866</td>\n",
       "        <td>Dawn Price</td>\n",
       "        <td>27384.32</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>43704100</td>\n",
       "        <td>Sara Weaver</td>\n",
       "        <td>64056.63</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>43712744</td>\n",
       "        <td>Cynthia Willis</td>\n",
       "        <td>71119.29</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>44244863</td>\n",
       "        <td>Joseph Perez</td>\n",
       "        <td>34877.09</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>44436274</td>\n",
       "        <td>Amber Fitzpatrick</td>\n",
       "        <td>58606.29</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>45255856</td>\n",
       "        <td>Chad Atkins</td>\n",
       "        <td>3900.08</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>45277679</td>\n",
       "        <td>Aaron Barnes</td>\n",
       "        <td>42783.60</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>45812721</td>\n",
       "        <td>Tim Carter</td>\n",
       "        <td>4561.58</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>46013960</td>\n",
       "        <td>Zachary Sherman</td>\n",
       "        <td>97940.03</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>49643932</td>\n",
       "        <td>Scott Davis</td>\n",
       "        <td>46175.00</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>50312738</td>\n",
       "        <td>Victoria Andrews</td>\n",
       "        <td>72410.91</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>50354017</td>\n",
       "        <td>Melissa Hobbs</td>\n",
       "        <td>12830.85</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>51674129</td>\n",
       "        <td>Laura Huber</td>\n",
       "        <td>15506.18</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>52662843</td>\n",
       "        <td>Donna Smith</td>\n",
       "        <td>96704.53</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>52926354</td>\n",
       "        <td>Kerri Elliott</td>\n",
       "        <td>94942.99</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>54714079</td>\n",
       "        <td>Michael Jones</td>\n",
       "        <td>47161.03</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>55439872</td>\n",
       "        <td>Annette Cuevas</td>\n",
       "        <td>64012.92</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>56541462</td>\n",
       "        <td>Haley Wilson</td>\n",
       "        <td>8815.40</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>57064339</td>\n",
       "        <td>Theresa Snyder</td>\n",
       "        <td>20683.21</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>57935558</td>\n",
       "        <td>Daniel Armstrong</td>\n",
       "        <td>18834.38</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>58000819</td>\n",
       "        <td>Jamie Dixon</td>\n",
       "        <td>34711.82</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>58545212</td>\n",
       "        <td>Linda Jones</td>\n",
       "        <td>2458.01</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>59841226</td>\n",
       "        <td>Jennifer Williams</td>\n",
       "        <td>79297.52</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>61068175</td>\n",
       "        <td>Bryan Green</td>\n",
       "        <td>73076.54</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>61825741</td>\n",
       "        <td>Jessica Robinson</td>\n",
       "        <td>90067.20</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>62723410</td>\n",
       "        <td>Christine Turner</td>\n",
       "        <td>32029.44</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>63634081</td>\n",
       "        <td>Daniel Contreras</td>\n",
       "        <td>87923.71</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>64538767</td>\n",
       "        <td>Melissa Turner</td>\n",
       "        <td>59850.53</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>65644872</td>\n",
       "        <td>James Avila</td>\n",
       "        <td>68329.73</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>69386626</td>\n",
       "        <td>Kelsey Cervantes</td>\n",
       "        <td>79170.79</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>69610798</td>\n",
       "        <td>Brandi Moore</td>\n",
       "        <td>11125.43</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>70167668</td>\n",
       "        <td>Brian Hoover</td>\n",
       "        <td>85543.93</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>71167941</td>\n",
       "        <td>Cody Morgan</td>\n",
       "        <td>21836.97</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>72203243</td>\n",
       "        <td>Carrie Thomas</td>\n",
       "        <td>76766.21</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>72987179</td>\n",
       "        <td>Dana Baker</td>\n",
       "        <td>96049.74</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>73492317</td>\n",
       "        <td>Adrienne Stone</td>\n",
       "        <td>45186.78</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>74290373</td>\n",
       "        <td>William Douglas</td>\n",
       "        <td>65616.71</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>74704243</td>\n",
       "        <td>Barbara Cuevas</td>\n",
       "        <td>10731.71</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>75147177</td>\n",
       "        <td>Jocelyn Gilbert</td>\n",
       "        <td>23482.65</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>75189013</td>\n",
       "        <td>Lori Jones</td>\n",
       "        <td>60922.02</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>75353895</td>\n",
       "        <td>Paul Benson</td>\n",
       "        <td>26102.18</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>75360790</td>\n",
       "        <td>Blake Cooper</td>\n",
       "        <td>16122.13</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>75523120</td>\n",
       "        <td>Paul Gibson</td>\n",
       "        <td>81543.97</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>75863409</td>\n",
       "        <td>James Hines</td>\n",
       "        <td>75250.71</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>76936237</td>\n",
       "        <td>Chad Nicholson</td>\n",
       "        <td>98420.50</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>77149605</td>\n",
       "        <td>Jonathan Bautista</td>\n",
       "        <td>95316.22</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>77401497</td>\n",
       "        <td>Elizabeth Andersen</td>\n",
       "        <td>88391.06</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>79438170</td>\n",
       "        <td>Ms. Rebecca Hall</td>\n",
       "        <td>60703.58</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>79475809</td>\n",
       "        <td>Bryan Brown Jr.</td>\n",
       "        <td>59410.50</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>79504929</td>\n",
       "        <td>Megan Carlson</td>\n",
       "        <td>48345.86</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>80342292</td>\n",
       "        <td>Rodney Strickland</td>\n",
       "        <td>11927.42</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>80728264</td>\n",
       "        <td>Reginald Roberts</td>\n",
       "        <td>78922.39</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>82425155</td>\n",
       "        <td>David Clark</td>\n",
       "        <td>17295.15</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>84847035</td>\n",
       "        <td>Timothy Williams</td>\n",
       "        <td>35919.15</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>85232444</td>\n",
       "        <td>Ashley Knight</td>\n",
       "        <td>58513.22</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>86646935</td>\n",
       "        <td>Judith Rodriguez</td>\n",
       "        <td>82176.38</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>87356185</td>\n",
       "        <td>Laura Castillo</td>\n",
       "        <td>81767.62</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>87591115</td>\n",
       "        <td>Eric Fields</td>\n",
       "        <td>49400.63</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>89363591</td>\n",
       "        <td>Sara Griffith</td>\n",
       "        <td>27862.81</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>90446123</td>\n",
       "        <td>James Gibson</td>\n",
       "        <td>58628.37</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>91973536</td>\n",
       "        <td>Karen Hunt</td>\n",
       "        <td>91278.72</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>94335018</td>\n",
       "        <td>Eric Mcgee</td>\n",
       "        <td>97024.05</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>95440048</td>\n",
       "        <td>Angela Roman</td>\n",
       "        <td>75554.23</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>97181338</td>\n",
       "        <td>Joseph Matthews</td>\n",
       "        <td>23464.91</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>97328507</td>\n",
       "        <td>Julie Baker</td>\n",
       "        <td>86320.40</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>98197568</td>\n",
       "        <td>Mr. Dylan Hernandez</td>\n",
       "        <td>67592.91</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>98230343</td>\n",
       "        <td>Nicholas Jacobson</td>\n",
       "        <td>44952.48</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "        <td>99345844</td>\n",
       "        <td>Caleb Davis</td>\n",
       "        <td>40633.29</td>\n",
       "    </tr>\n",
       "</table>"
      ],
      "text/plain": [
       "[(12050569, 'Shannon Santos', Decimal('6679.10')),\n",
       " (12585078, 'Elizabeth Sherman', Decimal('81401.22')),\n",
       " (12922010, 'Gary Cummings', Decimal('82458.58')),\n",
       " (14429509, 'Lisa Garcia', Decimal('62684.81')),\n",
       " (16865880, 'Christy Jones', Decimal('36643.26')),\n",
       " (16891629, 'Alfred Potter', Decimal('25586.46')),\n",
       " (17183102, 'Chad Nguyen Jr.', Decimal('8421.74')),\n",
       " (18025005, 'Andrew Wilson', Decimal('50134.35')),\n",
       " (18104044, 'Jody Collins', Decimal('43370.19')),\n",
       " (18369903, 'Ronald Stokes', Decimal('72475.77')),\n",
       " (20536886, 'Elizabeth Murphy', Decimal('26302.92')),\n",
       " (21122881, 'John Mcdonald', Decimal('66577.76')),\n",
       " (22346493, 'Angela Cook', Decimal('8726.90')),\n",
       " (23580748, 'Phillip Phillips', Decimal('87117.86')),\n",
       " (24304691, 'Gary Davis', Decimal('61267.87')),\n",
       " (29585828, 'Sheila Mack', Decimal('3143.64')),\n",
       " (31867228, 'Matthew Jensen Jr.', Decimal('10613.30')),\n",
       " (32398369, 'Kathryn Bush', Decimal('86954.62')),\n",
       " (32491608, 'Christina Peterson', Decimal('96449.55')),\n",
       " (32606812, 'Shannon Melton', Decimal('56821.76')),\n",
       " (32800520, 'Desiree White', Decimal('5503.59')),\n",
       " (35601316, 'Brittney Wright DDS', Decimal('85239.41')),\n",
       " (36448533, 'Charles Rivers', Decimal('28255.00')),\n",
       " (37607221, 'Joseph Rojas', Decimal('67438.57')),\n",
       " (38275461, 'Jessica Cervantes', Decimal('12397.28')),\n",
       " (38310940, 'Bryan Mcmahon', Decimal('31183.65')),\n",
       " (38476377, 'Kathleen Horton', Decimal('24121.70')),\n",
       " (41136819, 'Mario Anderson', Decimal('69689.05')),\n",
       " (41353087, 'Amber Wallace', Decimal('55862.85')),\n",
       " (42185083, 'Gina Murillo', Decimal('47656.73')),\n",
       " (42576215, 'Mary Barnes', Decimal('82977.61')),\n",
       " (43023148, 'Benjamin Richardson', Decimal('19640.96')),\n",
       " (43256866, 'Dawn Price', Decimal('27384.32')),\n",
       " (43704100, 'Sara Weaver', Decimal('64056.63')),\n",
       " (43712744, 'Cynthia Willis', Decimal('71119.29')),\n",
       " (44244863, 'Joseph Perez', Decimal('34877.09')),\n",
       " (44436274, 'Amber Fitzpatrick', Decimal('58606.29')),\n",
       " (45255856, 'Chad Atkins', Decimal('3900.08')),\n",
       " (45277679, 'Aaron Barnes', Decimal('42783.60')),\n",
       " (45812721, 'Tim Carter', Decimal('4561.58')),\n",
       " (46013960, 'Zachary Sherman', Decimal('97940.03')),\n",
       " (49643932, 'Scott Davis', Decimal('46175.00')),\n",
       " (50312738, 'Victoria Andrews', Decimal('72410.91')),\n",
       " (50354017, 'Melissa Hobbs', Decimal('12830.85')),\n",
       " (51674129, 'Laura Huber', Decimal('15506.18')),\n",
       " (52662843, 'Donna Smith', Decimal('96704.53')),\n",
       " (52926354, 'Kerri Elliott', Decimal('94942.99')),\n",
       " (54714079, 'Michael Jones', Decimal('47161.03')),\n",
       " (55439872, 'Annette Cuevas', Decimal('64012.92')),\n",
       " (56541462, 'Haley Wilson', Decimal('8815.40')),\n",
       " (57064339, 'Theresa Snyder', Decimal('20683.21')),\n",
       " (57935558, 'Daniel Armstrong', Decimal('18834.38')),\n",
       " (58000819, 'Jamie Dixon', Decimal('34711.82')),\n",
       " (58545212, 'Linda Jones', Decimal('2458.01')),\n",
       " (59841226, 'Jennifer Williams', Decimal('79297.52')),\n",
       " (61068175, 'Bryan Green', Decimal('73076.54')),\n",
       " (61825741, 'Jessica Robinson', Decimal('90067.20')),\n",
       " (62723410, 'Christine Turner', Decimal('32029.44')),\n",
       " (63634081, 'Daniel Contreras', Decimal('87923.71')),\n",
       " (64538767, 'Melissa Turner', Decimal('59850.53')),\n",
       " (65644872, 'James Avila', Decimal('68329.73')),\n",
       " (69386626, 'Kelsey Cervantes', Decimal('79170.79')),\n",
       " (69610798, 'Brandi Moore', Decimal('11125.43')),\n",
       " (70167668, 'Brian Hoover', Decimal('85543.93')),\n",
       " (71167941, 'Cody Morgan', Decimal('21836.97')),\n",
       " (72203243, 'Carrie Thomas', Decimal('76766.21')),\n",
       " (72987179, 'Dana Baker', Decimal('96049.74')),\n",
       " (73492317, 'Adrienne Stone', Decimal('45186.78')),\n",
       " (74290373, 'William Douglas', Decimal('65616.71')),\n",
       " (74704243, 'Barbara Cuevas', Decimal('10731.71')),\n",
       " (75147177, 'Jocelyn Gilbert', Decimal('23482.65')),\n",
       " (75189013, 'Lori Jones', Decimal('60922.02')),\n",
       " (75353895, 'Paul Benson', Decimal('26102.18')),\n",
       " (75360790, 'Blake Cooper', Decimal('16122.13')),\n",
       " (75523120, 'Paul Gibson', Decimal('81543.97')),\n",
       " (75863409, 'James Hines', Decimal('75250.71')),\n",
       " (76936237, 'Chad Nicholson', Decimal('98420.50')),\n",
       " (77149605, 'Jonathan Bautista', Decimal('95316.22')),\n",
       " (77401497, 'Elizabeth Andersen', Decimal('88391.06')),\n",
       " (79438170, 'Ms. Rebecca Hall', Decimal('60703.58')),\n",
       " (79475809, 'Bryan Brown Jr.', Decimal('59410.50')),\n",
       " (79504929, 'Megan Carlson', Decimal('48345.86')),\n",
       " (80342292, 'Rodney Strickland', Decimal('11927.42')),\n",
       " (80728264, 'Reginald Roberts', Decimal('78922.39')),\n",
       " (82425155, 'David Clark', Decimal('17295.15')),\n",
       " (84847035, 'Timothy Williams', Decimal('35919.15')),\n",
       " (85232444, 'Ashley Knight', Decimal('58513.22')),\n",
       " (86646935, 'Judith Rodriguez', Decimal('82176.38')),\n",
       " (87356185, 'Laura Castillo', Decimal('81767.62')),\n",
       " (87591115, 'Eric Fields', Decimal('49400.63')),\n",
       " (89363591, 'Sara Griffith', Decimal('27862.81')),\n",
       " (90446123, 'James Gibson', Decimal('58628.37')),\n",
       " (91973536, 'Karen Hunt', Decimal('91278.72')),\n",
       " (94335018, 'Eric Mcgee', Decimal('97024.05')),\n",
       " (95440048, 'Angela Roman', Decimal('75554.23')),\n",
       " (97181338, 'Joseph Matthews', Decimal('23464.91')),\n",
       " (97328507, 'Julie Baker', Decimal('86320.40')),\n",
       " (98197568, 'Mr. Dylan Hernandez', Decimal('67592.91')),\n",
       " (98230343, 'Nicholas Jacobson', Decimal('44952.48')),\n",
       " (99345844, 'Caleb Davis', Decimal('40633.29'))]"
      ]
     },
     "execution_count": 16,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "%%sql\n",
    "\n",
    "SELECT * FROM account;"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      " * mysql://dimitri:***@db.ust-data-sci.net\n"
     ]
    },
    {
     "ename": "Exception",
     "evalue": "ipython_sql does not support transactions",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mException\u001b[0m                                 Traceback (most recent call last)",
      "Input \u001b[0;32mIn [18]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mget_ipython\u001b[49m\u001b[43m(\u001b[49m\u001b[43m)\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mrun_cell_magic\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[38;5;124;43msql\u001b[39;49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;124;43m'\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43mBEGIN TRANSACTION;\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m  \u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m    UPDATE account SET balance = balance + 100\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m    WHERE account = 98230343;\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m    \u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m    \u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m    UPDATE account SET balance = balance - 100\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m    WHERE account 95440048;\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43mCOMMIT\u001b[39;49m\u001b[38;5;130;43;01m\\n\u001b[39;49;00m\u001b[38;5;124;43m'\u001b[39;49m\u001b[43m)\u001b[49m\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/IPython/core/interactiveshell.py:2358\u001b[0m, in \u001b[0;36mInteractiveShell.run_cell_magic\u001b[0;34m(self, magic_name, line, cell)\u001b[0m\n\u001b[1;32m   2356\u001b[0m \u001b[38;5;28;01mwith\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mbuiltin_trap:\n\u001b[1;32m   2357\u001b[0m     args \u001b[38;5;241m=\u001b[39m (magic_arg_s, cell)\n\u001b[0;32m-> 2358\u001b[0m     result \u001b[38;5;241m=\u001b[39m \u001b[43mfn\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[43margs\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[43mkwargs\u001b[49m\u001b[43m)\u001b[49m\n\u001b[1;32m   2359\u001b[0m \u001b[38;5;28;01mreturn\u001b[39;00m result\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/sql/magic.py:215\u001b[0m, in \u001b[0;36mSqlMagic.execute\u001b[0;34m(self, line, cell, local_ns)\u001b[0m\n\u001b[1;32m    212\u001b[0m     \u001b[38;5;28;01mreturn\u001b[39;00m\n\u001b[1;32m    214\u001b[0m \u001b[38;5;28;01mtry\u001b[39;00m:\n\u001b[0;32m--> 215\u001b[0m     result \u001b[38;5;241m=\u001b[39m \u001b[43msql\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mrun\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mrun\u001b[49m\u001b[43m(\u001b[49m\u001b[43mconn\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mparsed\u001b[49m\u001b[43m[\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43msql\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m]\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;28;43mself\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43muser_ns\u001b[49m\u001b[43m)\u001b[49m\n\u001b[1;32m    217\u001b[0m     \u001b[38;5;28;01mif\u001b[39;00m (\n\u001b[1;32m    218\u001b[0m         result \u001b[38;5;129;01mis\u001b[39;00m \u001b[38;5;129;01mnot\u001b[39;00m \u001b[38;5;28;01mNone\u001b[39;00m\n\u001b[1;32m    219\u001b[0m         \u001b[38;5;129;01mand\u001b[39;00m \u001b[38;5;129;01mnot\u001b[39;00m \u001b[38;5;28misinstance\u001b[39m(result, \u001b[38;5;28mstr\u001b[39m)\n\u001b[0;32m   (...)\u001b[0m\n\u001b[1;32m    222\u001b[0m         \u001b[38;5;66;03m# Instead of returning values, set variables directly in the\u001b[39;00m\n\u001b[1;32m    223\u001b[0m         \u001b[38;5;66;03m# users namespace. Variable names given by column names\u001b[39;00m\n\u001b[1;32m    225\u001b[0m         \u001b[38;5;28;01mif\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mautopandas:\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/sql/run.py:357\u001b[0m, in \u001b[0;36mrun\u001b[0;34m(conn, sql, config, user_namespace)\u001b[0m\n\u001b[1;32m    355\u001b[0m first_word \u001b[38;5;241m=\u001b[39m sql\u001b[38;5;241m.\u001b[39mstrip()\u001b[38;5;241m.\u001b[39msplit()[\u001b[38;5;241m0\u001b[39m]\u001b[38;5;241m.\u001b[39mlower()\n\u001b[1;32m    356\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m first_word \u001b[38;5;241m==\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mbegin\u001b[39m\u001b[38;5;124m\"\u001b[39m:\n\u001b[0;32m--> 357\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m \u001b[38;5;167;01mException\u001b[39;00m(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mipython_sql does not support transactions\u001b[39m\u001b[38;5;124m\"\u001b[39m)\n\u001b[1;32m    358\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m first_word\u001b[38;5;241m.\u001b[39mstartswith(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;130;01m\\\\\u001b[39;00m\u001b[38;5;124m\"\u001b[39m) \u001b[38;5;129;01mand\u001b[39;00m \\\n\u001b[1;32m    359\u001b[0m         (\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mpostgres\u001b[39m\u001b[38;5;124m\"\u001b[39m \u001b[38;5;129;01min\u001b[39;00m \u001b[38;5;28mstr\u001b[39m(conn\u001b[38;5;241m.\u001b[39mdialect) \u001b[38;5;129;01mor\u001b[39;00m \\\n\u001b[1;32m    360\u001b[0m         \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mredshift\u001b[39m\u001b[38;5;124m\"\u001b[39m \u001b[38;5;129;01min\u001b[39;00m \u001b[38;5;28mstr\u001b[39m(conn\u001b[38;5;241m.\u001b[39mdialect)):\n\u001b[1;32m    361\u001b[0m     \u001b[38;5;28;01mif\u001b[39;00m \u001b[38;5;129;01mnot\u001b[39;00m PGSpecial:\n",
      "\u001b[0;31mException\u001b[0m: ipython_sql does not support transactions"
     ]
    }
   ],
   "source": [
    "%%sql\n",
    "\n",
    "BEGIN TRANSACTION;\n",
    "  \n",
    "    UPDATE account SET balance = balance + 100\n",
    "    WHERE account = 98230343;\n",
    "    \n",
    "    \n",
    "    UPDATE account SET balance = balance - 100\n",
    "    WHERE account 95440048;\n",
    "\n",
    "COMMIT"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [],
   "source": [
    "import pymysql"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [],
   "source": [
    "import json\n",
    "with open('cred.json') as f:\n",
    "    creds = json.load(f)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {},
   "outputs": [],
   "source": [
    "conn = pymysql.connect(**creds, autocommit=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'account_number': 71167941}"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "account1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1"
      ]
     },
     "execution_count": 24,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "cursor = conn.cursor()\n",
    "cursor.execute(\"\"\"\n",
    "    SELECT balance FROM dimitri_bank.account \n",
    "    WHERE account_number = %s\n",
    "    \"\"\", (account1[\"account_number\"],))\n",
    "\n",
    "amount = 100\n",
    "\n",
    "current_balance = cursor.fetchone()\n",
    "\n",
    "cursor.execute(\"\"\"\n",
    "    UPDATE dimitri_bank.account \n",
    "    SET balance = balance - %s\n",
    "    WHERE account_number = %s\n",
    "    \"\"\", (amount, account1[\"account_number\"],))\n",
    "\n",
    "cursor.execute(\"\"\"\n",
    "    UPDATE dimitri_bank.account \n",
    "    SET balance = balance + %s\n",
    "    WHERE account_number = %s\n",
    "    \"\"\", (amount, account2[\"account_number\"],))\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {},
   "outputs": [],
   "source": [
    "def transfer(cursor, account1, account2, amount):\n",
    "    \n",
    "    cursor.execute(\"BEGIN TRANSACTION\")\n",
    "    \n",
    "    try:\n",
    "        cursor.execute(\"\"\"\n",
    "            SELECT balance FROM shared_bank.account \n",
    "            WHERE account_number = %s\n",
    "            \"\"\", (account1[\"account_number\"],))\n",
    "\n",
    "        current_balance = cursor.fetchone()\n",
    "\n",
    "        if current_balance < amount:\n",
    "            raise RuntimeError('Insufficient funds')\n",
    "\n",
    "        cursor.execute(\"\"\"\n",
    "            UPDATE shared_bank.account \n",
    "            SET balance = balance - %s\n",
    "            WHERE account_number = %s\n",
    "            \"\"\", (amount, account1[\"account_number\"],))\n",
    "\n",
    "        cursor.execute(\"\"\"\n",
    "            UPDATE shared_bank.account \n",
    "            SET balance = balance + %s\n",
    "            WHERE account_number = %s\n",
    "            \"\"\", (amount, account2[\"account_number\"],))\n",
    "        \n",
    "    except: \n",
    "        cursor.execute('CANCEL TRANSACTION')\n",
    "        raise\n",
    "    \n",
    "    else:\n",
    "        cursor.execute('COMMIT')\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Design Patterns\n",
    "\n",
    "- Sequence\n",
    "  * workflows\n",
    "- Specialization / Generalization\n",
    "  * student / faculty / staff\n",
    "- Hierarchies\n",
    "  * Ownership\n",
    "  * Using composite primary keys\n",
    "  * Secondary keys\n",
    "- Parameterization\n",
    "  * \n",
    "- Associations\n",
    "  * Many-to-many relationships\n",
    "  * Directed graphs \n",
    "  * Trees\n",
    "  * Undirected graphs\n",
    "- Master-part\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "metadata": {},
   "outputs": [],
   "source": [
    "import datajoint as dj"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Proceed to delete entire schema `dimitri_patterns`? [yes, No]: yes\n"
     ]
    }
   ],
   "source": [
    "schema = dj.schema('dimitri_patterns')\n",
    "schema.drop()\n",
    "schema = dj.schema('dimitri_patterns')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Sequence / Workflows"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [],
   "source": [
    "# E.g. order / shipment / confirmation"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Order(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    order_number : int\n",
    "    ---\n",
    "    order_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Shipment(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Order\n",
    "    ---\n",
    "    ship_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Confirm(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Shipment\n",
    "    ---\n",
    "    confirm_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"76pt\" height=\"185pt\" viewBox=\"0.00 0.00 76.00 185.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 181)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-181 72,-181 72,4 -4,4\"/>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"68,-106 0,-106 0,-71 68,-71 68,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"34\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"63.5,-35 4.5,-35 4.5,0 63.5,0 63.5,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"34\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M34,-70.8C34,-59.95 34,-45.87 34,-35.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"57.5,-177 10.5,-177 10.5,-142 57.5,-142 57.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"18.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M34,-141.8C34,-130.95 34,-116.87 34,-106.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb3e7880>"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    \n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">order_number</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">order_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">ship_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">confirm_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*order_number  order_date     ship_date     confirm_date  \n",
       "+------------+ +------------+ +-----------+ +------------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Order * Shipment * Confirm"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Order2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    order_number : int\n",
    "    ---\n",
    "    order_date : date\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Shipment2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    shipment_id : int\n",
    "    ---\n",
    "    ->[unique] Order2\n",
    "    ship_date : date\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Confirm2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    confirm_id : int\n",
    "    ---\n",
    "    -> [unique] Shipment2\n",
    "    confirm_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"168pt\" height=\"185pt\" viewBox=\"0.00 0.00 168.00 185.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 181)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-181 164,-181 164,4 -4,4\"/>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"63.5,-35 4.5,-35 4.5,0 63.5,0 63.5,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"34\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"149.5,-177 96.5,-177 96.5,-142 149.5,-142 149.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"104.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"160,-106 86,-106 86,-71 160,-71 160,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"94\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M123,-141.8C123,-130.95 123,-116.87 123,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"68,-106 0,-106 0,-71 68,-71 68,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"34\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M34,-70.8C34,-59.95 34,-45.87 34,-35.05\"/>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"155.5,-35 90.5,-35 90.5,0 155.5,0 155.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"98.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M123,-70.8C123,-59.95 123,-45.87 123,-35.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"57.5,-177 10.5,-177 10.5,-142 57.5,-142 57.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"18.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M34,-141.8C34,-130.95 34,-116.87 34,-106.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb479540>"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    \n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">order_number</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">order_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">confirm_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*order_number  order_date     confirm_date  \n",
       "+------------+ +------------+ +------------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 36,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Order * Confirm"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    \n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">order_number</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">order_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">ship_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">confirm_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*order_number  order_date     ship_date     confirm_date  \n",
       "+------------+ +------------+ +-----------+ +------------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 37,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Order * Shipment * Confirm "
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Two ways to model hierarchies\n",
    "\n",
    "## Approach 1: Simple primary keys with secondary dependencies"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Subject(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    # Experiment Subject\n",
    "    subject_id : int\n",
    "    ---\n",
    "    species = 'mouse' : enum('human', 'mouse', 'rat', 'worm')\n",
    "    sex : enum('F', 'M', 'unknown')\n",
    "    \"\"\"\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b>Experiment Subject</b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">subject_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">species</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">sex</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*subject_id    species     sex    \n",
       "+------------+ +---------+ +-----+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 39,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Subject()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "metadata": {},
   "outputs": [],
   "source": [
    "Subject.insert1(dict(subject_id=1, species=\"human\", sex=\"unknown\"), skip_duplicates=True)\n",
    "Subject.insert1(dict(subject_id=2, species=\"mouse\", sex=\"F\"), skip_duplicates=True)\n",
    "Subject.insert1(dict(subject_id=3, species=\"worm\", sex=\"M\"), skip_duplicates=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Session(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Subject\n",
    "    session : int\n",
    "    ---\n",
    "    session_timestamp = CURRENT_TIMESTAMP : timestamp\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "metadata": {},
   "outputs": [],
   "source": [
    "Session.insert1(dict(session=1, subject_id=2), skip_duplicates=True)\n",
    "Session.insert1(dict(session=2, subject_id=2), skip_duplicates=True)\n",
    "Session.insert1(dict(session=3, subject_id=3), skip_duplicates=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">subject_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">session</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">session_timestamp</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>2</td>\n",
       "<td>1</td>\n",
       "<td>2022-11-08 17:24:53</td></tr><tr><td>2</td>\n",
       "<td>2</td>\n",
       "<td>2022-11-08 17:24:53</td></tr><tr><td>3</td>\n",
       "<td>3</td>\n",
       "<td>2022-11-08 17:24:53</td> </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 3</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*subject_id    *session    session_timest\n",
       "+------------+ +---------+ +------------+\n",
       "2              1           2022-11-08 17:\n",
       "2              2           2022-11-08 17:\n",
       "3              3           2022-11-08 17:\n",
       " (Total: 3)"
      ]
     },
     "execution_count": 43,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Session()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Scan(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Session\n",
    "    scan_id : int\n",
    "    ---\n",
    "    laser_power : float  # mW\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">subject_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">session</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">scan_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">laser_power</p>\n",
       "                            <span class=\"djtooltiptext\">mW</span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*subject_id    *session    *scan_id    laser_power   \n",
       "+------------+ +---------+ +---------+ +------------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 45,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Scan()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "metadata": {},
   "outputs": [],
   "source": [
    "Scan.insert1(dict(subject_id=2, scan_id=1, session=1, laser_power=3200))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Cell(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Scan\n",
    "    cell_id : int\n",
    "    ---\n",
    "    cell_type : enum('E', 'I')   # excitatory or inhibitory\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"246pt\" height=\"256pt\" viewBox=\"0.00 0.00 246.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 242,-252 242,4 -4,4\"/>\n",
       "<!-- Cell -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"49,-35 11,-35 11,0 49,0 49,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"19\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"141.5,-106 82.5,-106 82.5,-71 141.5,-71 141.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"112\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"60,-177 0,-177 0,-142 60,-142 60,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"52,-106 8,-106 8,-71 52,-71 52,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"16\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-141.8C30,-130.95 30,-116.87 30,-106.05\"/>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"227.5,-248 174.5,-248 174.5,-213 227.5,-213 227.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"182.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"238,-177 164,-177 164,-142 238,-142 238,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"172\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M201,-212.8C201,-201.95 201,-187.87 201,-177.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"58.5,-248 1.5,-248 1.5,-213 58.5,-213 58.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"9.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-212.8C30,-201.95 30,-187.87 30,-177.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"146,-177 78,-177 78,-142 146,-142 146,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"112\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112,-141.8C112,-130.95 112,-116.87 112,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"233.5,-106 168.5,-106 168.5,-71 233.5,-71 233.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"176.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-70.8C30,-59.95 30,-45.87 30,-35.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M201,-141.8C201,-130.95 201,-116.87 201,-106.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"135.5,-248 88.5,-248 88.5,-213 135.5,-213 135.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"96.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112,-212.8C112,-201.95 112,-187.87 112,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb4ed510>"
      ]
     },
     "execution_count": 48,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Give me excitatory cells for all males"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">subject_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">session</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">scan_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">cell_id</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">cell_type</p>\n",
       "                            <span class=\"djtooltiptext\">excitatory or inhibitory</span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*subject_id    *session    *scan_id    *cell_id    cell_type    \n",
       "+------------+ +---------+ +---------+ +---------+ +-----------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 50,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Cell & (Subject & {'sex': \"M\"})"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Subject2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    # Experiment Subject\n",
    "    subject_id : int\n",
    "    ---\n",
    "    species = 'mouse' : enum('human', 'mouse', 'rat', 'worm')\n",
    "    sex : enum('F', 'M', 'unknown')\n",
    "    \"\"\"\n",
    "\n",
    "@schema\n",
    "class Session2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    session : int\n",
    "    ---\n",
    "    -> Subject2\n",
    "    session_timestamp = CURRENT_TIMESTAMP : timestamp\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Scan2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    scan_id : int\n",
    "    ---\n",
    "    -> Session2\n",
    "    laser_power : float  # mW\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Cell2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    cell_id : int\n",
    "    ---\n",
    "    -> Scan2\n",
    "    cell_type : enum('E', 'I')   # excitatory or inhibitory\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 52,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"332pt\" height=\"256pt\" viewBox=\"0.00 0.00 332.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 328,-252 328,4 -4,4\"/>\n",
       "<!-- Cell -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"49,-35 11,-35 11,0 49,0 49,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"19\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"141.5,-106 82.5,-106 82.5,-71 141.5,-71 141.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"112\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"60,-177 0,-177 0,-142 60,-142 60,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"52,-106 8,-106 8,-71 52,-71 52,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"16\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-141.8C30,-130.95 30,-116.87 30,-106.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"220.5,-35 175.5,-35 175.5,0 220.5,0 220.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"183.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"313.5,-248 260.5,-248 260.5,-213 313.5,-213 313.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"268.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"324,-177 250,-177 250,-142 324,-142 324,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"258\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M287,-212.8C287,-201.95 287,-187.87 287,-177.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"58.5,-248 1.5,-248 1.5,-213 58.5,-213 58.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"9.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-212.8C30,-201.95 30,-187.87 30,-177.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"231.5,-177 164.5,-177 164.5,-142 231.5,-142 231.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"172.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"223.5,-106 172.5,-106 172.5,-71 223.5,-71 223.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"180.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M198,-141.8C198,-130.95 198,-116.87 198,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"146,-177 78,-177 78,-142 146,-142 146,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"112\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112,-141.8C112,-130.95 112,-116.87 112,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"319.5,-106 254.5,-106 254.5,-71 319.5,-71 319.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"262.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"230,-248 166,-248 166,-213 230,-213 230,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"174\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M198,-212.8C198,-201.95 198,-187.87 198,-177.05\"/>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M198,-70.8C198,-59.95 198,-45.87 198,-35.05\"/>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-70.8C30,-59.95 30,-45.87 30,-35.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M287,-141.8C287,-130.95 287,-116.87 287,-106.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"135.5,-248 88.5,-248 88.5,-213 135.5,-213 135.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"96.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112,-212.8C112,-201.95 112,-187.87 112,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb5132b0>"
      ]
     },
     "execution_count": 52,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 53,
   "metadata": {},
   "outputs": [
    {
     "ename": "MissingAttributeError",
     "evalue": "Field 'subject_id' doesn't have a default value",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mMissingAttributeError\u001b[0m                     Traceback (most recent call last)",
      "Input \u001b[0;32mIn [53]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mCell\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43minsert1\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;28;43mdict\u001b[39;49m\u001b[43m(\u001b[49m\u001b[43mcell_id\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[38;5;241;43m1\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mscan_id\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[38;5;241;43m1\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mcell_type\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mE\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/datajoint/table.py:334\u001b[0m, in \u001b[0;36mTable.insert1\u001b[0;34m(self, row, **kwargs)\u001b[0m\n\u001b[1;32m    327\u001b[0m \u001b[38;5;28;01mdef\u001b[39;00m \u001b[38;5;21minsert1\u001b[39m(\u001b[38;5;28mself\u001b[39m, row, \u001b[38;5;241m*\u001b[39m\u001b[38;5;241m*\u001b[39mkwargs):\n\u001b[1;32m    328\u001b[0m     \u001b[38;5;124;03m\"\"\"\u001b[39;00m\n\u001b[1;32m    329\u001b[0m \u001b[38;5;124;03m    Insert one data record into the table. For ``kwargs``, see ``insert()``.\u001b[39;00m\n\u001b[1;32m    330\u001b[0m \n\u001b[1;32m    331\u001b[0m \u001b[38;5;124;03m    :param row: a numpy record, a dict-like object, or an ordered sequence to be inserted\u001b[39;00m\n\u001b[1;32m    332\u001b[0m \u001b[38;5;124;03m        as one row.\u001b[39;00m\n\u001b[1;32m    333\u001b[0m \u001b[38;5;124;03m    \"\"\"\u001b[39;00m\n\u001b[0;32m--> 334\u001b[0m     \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43minsert\u001b[49m\u001b[43m(\u001b[49m\u001b[43m(\u001b[49m\u001b[43mrow\u001b[49m\u001b[43m,\u001b[49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[43mkwargs\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/datajoint/table.py:430\u001b[0m, in \u001b[0;36mTable.insert\u001b[0;34m(self, rows, replace, skip_duplicates, ignore_extra_fields, allow_direct_insert)\u001b[0m\n\u001b[1;32m    414\u001b[0m \u001b[38;5;28;01mtry\u001b[39;00m:\n\u001b[1;32m    415\u001b[0m     query \u001b[38;5;241m=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;132;01m{command}\u001b[39;00m\u001b[38;5;124m INTO \u001b[39m\u001b[38;5;132;01m{destination}\u001b[39;00m\u001b[38;5;124m(`\u001b[39m\u001b[38;5;132;01m{fields}\u001b[39;00m\u001b[38;5;124m`) VALUES \u001b[39m\u001b[38;5;132;01m{placeholders}\u001b[39;00m\u001b[38;5;132;01m{duplicate}\u001b[39;00m\u001b[38;5;124m\"\u001b[39m\u001b[38;5;241m.\u001b[39mformat(\n\u001b[1;32m    416\u001b[0m         command\u001b[38;5;241m=\u001b[39m\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mREPLACE\u001b[39m\u001b[38;5;124m\"\u001b[39m \u001b[38;5;28;01mif\u001b[39;00m replace \u001b[38;5;28;01melse\u001b[39;00m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mINSERT\u001b[39m\u001b[38;5;124m\"\u001b[39m,\n\u001b[1;32m    417\u001b[0m         destination\u001b[38;5;241m=\u001b[39m\u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mfrom_clause(),\n\u001b[0;32m   (...)\u001b[0m\n\u001b[1;32m    428\u001b[0m         ),\n\u001b[1;32m    429\u001b[0m     )\n\u001b[0;32m--> 430\u001b[0m     \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mconnection\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mquery\u001b[49m\u001b[43m(\u001b[49m\n\u001b[1;32m    431\u001b[0m \u001b[43m        \u001b[49m\u001b[43mquery\u001b[49m\u001b[43m,\u001b[49m\n\u001b[1;32m    432\u001b[0m \u001b[43m        \u001b[49m\u001b[43margs\u001b[49m\u001b[38;5;241;43m=\u001b[39;49m\u001b[38;5;28;43mlist\u001b[39;49m\u001b[43m(\u001b[49m\n\u001b[1;32m    433\u001b[0m \u001b[43m            \u001b[49m\u001b[43mitertools\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mchain\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mfrom_iterable\u001b[49m\u001b[43m(\u001b[49m\n\u001b[1;32m    434\u001b[0m \u001b[43m                \u001b[49m\u001b[43m(\u001b[49m\u001b[43mv\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;28;43;01mfor\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[43mv\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;129;43;01min\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[43mr\u001b[49m\u001b[43m[\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mvalues\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m]\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;28;43;01mif\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[43mv\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;129;43;01mis\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[38;5;129;43;01mnot\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[38;5;28;43;01mNone\u001b[39;49;00m\u001b[43m)\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;28;43;01mfor\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[43mr\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;129;43;01min\u001b[39;49;00m\u001b[43m \u001b[49m\u001b[43mrows\u001b[49m\n\u001b[1;32m    435\u001b[0m \u001b[43m            \u001b[49m\u001b[43m)\u001b[49m\n\u001b[1;32m    436\u001b[0m \u001b[43m        \u001b[49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\n\u001b[1;32m    437\u001b[0m \u001b[43m    \u001b[49m\u001b[43m)\u001b[49m\n\u001b[1;32m    438\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m UnknownAttributeError \u001b[38;5;28;01mas\u001b[39;00m err:\n\u001b[1;32m    439\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m err\u001b[38;5;241m.\u001b[39msuggest(\n\u001b[1;32m    440\u001b[0m         \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mTo ignore extra fields in insert, set ignore_extra_fields=True\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[1;32m    441\u001b[0m     )\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/datajoint/connection.py:340\u001b[0m, in \u001b[0;36mConnection.query\u001b[0;34m(self, query, args, as_dict, suppress_warnings, reconnect)\u001b[0m\n\u001b[1;32m    338\u001b[0m cursor \u001b[38;5;241m=\u001b[39m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_conn\u001b[38;5;241m.\u001b[39mcursor(cursor\u001b[38;5;241m=\u001b[39mcursor_class)\n\u001b[1;32m    339\u001b[0m \u001b[38;5;28;01mtry\u001b[39;00m:\n\u001b[0;32m--> 340\u001b[0m     \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43m_execute_query\u001b[49m\u001b[43m(\u001b[49m\u001b[43mcursor\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mquery\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43margs\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43msuppress_warnings\u001b[49m\u001b[43m)\u001b[49m\n\u001b[1;32m    341\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m errors\u001b[38;5;241m.\u001b[39mLostConnectionError:\n\u001b[1;32m    342\u001b[0m     \u001b[38;5;28;01mif\u001b[39;00m \u001b[38;5;129;01mnot\u001b[39;00m reconnect:\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/datajoint/connection.py:296\u001b[0m, in \u001b[0;36mConnection._execute_query\u001b[0;34m(cursor, query, args, suppress_warnings)\u001b[0m\n\u001b[1;32m    294\u001b[0m         cursor\u001b[38;5;241m.\u001b[39mexecute(query, args)\n\u001b[1;32m    295\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m client\u001b[38;5;241m.\u001b[39merr\u001b[38;5;241m.\u001b[39mError \u001b[38;5;28;01mas\u001b[39;00m err:\n\u001b[0;32m--> 296\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m translate_query_error(err, query)\n",
      "\u001b[0;31mMissingAttributeError\u001b[0m: Field 'subject_id' doesn't have a default value"
     ]
    }
   ],
   "source": [
    "Cell.insert1(dict(cell_id=1, scan_id=1, cell_type=\"E\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "Cell()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Give me cells for subject_id=1\n",
    "\n",
    "Cell2 & (Scan2 & (Session2 & 'subject_id=2'))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Give me cells for all males\n",
    "\n",
    "(Cell2 & (Scan2 & (Session2 & (Subject2 & 'sex=\"M\"')))).make_sql()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "(Cell & (Subject & 'sex=\"M\"')).make_sql()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Parameterization"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Image(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    image_id : int\n",
    "    ---\n",
    "    image : longblob\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class EnhanceMethod(dj.Lookup):\n",
    "    definition = \"\"\"\n",
    "    enhance_method : int\n",
    "    ---\n",
    "    method_name : varchar(16)\n",
    "    \"\"\"\n",
    "    \n",
    "    contents = ((1, \"sharpen\"), (2, \"contrast\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class EnhancedImage(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Image\n",
    "    -> EnhanceMethod\n",
    "    ---\n",
    "    enhanced_image : longblob\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Association \n",
    "\n",
    "Books and authors\n",
    "\n",
    "Checking accounts and account owners"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Book(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    isbn : int\n",
    "    ---\n",
    "    title : varchar(300)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 55,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Author(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    author_id : int\n",
    "    ---\n",
    "    name : varchar(300)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 56,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class AuthorBook(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Author\n",
    "    -> Book\n",
    "    ---\n",
    "    order : tinyint unsigned \n",
    "    unique index(isbn, order)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 57,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"468pt\" height=\"256pt\" viewBox=\"0.00 0.00 468.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 464,-252 464,4 -4,4\"/>\n",
       "<!-- Cell -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"49,-35 11,-35 11,0 49,0 49,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"19\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"141.5,-106 82.5,-106 82.5,-71 141.5,-71 141.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"112\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"60,-177 0,-177 0,-142 60,-142 60,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node15\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node15\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"52,-106 8,-106 8,-71 52,-71 52,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"16\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-141.8C30,-130.95 30,-116.87 30,-106.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"220.5,-35 175.5,-35 175.5,0 220.5,0 220.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"183.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"313.5,-248 260.5,-248 260.5,-213 313.5,-213 313.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"268.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node16\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node16\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"324,-177 250,-177 250,-142 324,-142 324,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"258\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M287,-212.8C287,-201.95 287,-187.87 287,-177.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"58.5,-248 1.5,-248 1.5,-213 58.5,-213 58.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"9.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-212.8C30,-201.95 30,-187.87 30,-177.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"231.5,-177 164.5,-177 164.5,-142 231.5,-142 231.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"172.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"223.5,-106 172.5,-106 172.5,-71 223.5,-71 223.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"180.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M198,-141.8C198,-130.95 198,-116.87 198,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"146,-177 78,-177 78,-142 146,-142 146,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"112\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112,-141.8C112,-130.95 112,-116.87 112,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"319.5,-106 254.5,-106 254.5,-71 319.5,-71 319.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"262.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"230,-248 166,-248 166,-213 230,-213 230,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"174\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M198,-212.8C198,-201.95 198,-187.87 198,-177.05\"/>\n",
       "</g>\n",
       "<!-- AuthorBook -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>AuthorBook</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"→ Author\r",
       "→ Book\r",
       "------------------------------\r",
       "order                \r",
       "UNIQUE INDEX (isbn, order)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"448,-177 368,-177 368,-142 448,-142 448,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"408\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">AuthorBook</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Book</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"isbn                 \r",
       "------------------------------\r",
       "title                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"390,-248 346,-248 346,-213 390,-213 390,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"354\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Book</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Book-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M377.68,-212.8C383.97,-201.95 392.14,-187.87 398.41,-177.05\"/>\n",
       "</g>\n",
       "<!-- Author -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Author</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"author_id            \r",
       "------------------------------\r",
       "name                 \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"460,-248 408,-248 408,-213 460,-213 460,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"416\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Author</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Author&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Author-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M427.71,-212.8C423.62,-201.95 418.31,-187.87 414.24,-177.05\"/>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M198,-70.8C198,-59.95 198,-45.87 198,-35.05\"/>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-70.8C30,-59.95 30,-45.87 30,-35.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M287,-141.8C287,-130.95 287,-116.87 287,-106.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node17\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node17\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"135.5,-248 88.5,-248 88.5,-213 135.5,-213 135.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"96.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112,-212.8C112,-201.95 112,-187.87 112,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb430700>"
      ]
     },
     "execution_count": 57,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Generalization / specialization\n",
    "\n",
    "Employee, student, instructor"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 58,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Person(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    person_id : int\n",
    "    ---\n",
    "    date_of_birth : date\n",
    "    gender : enum(\"male\", \"female\", \"unknown\")\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 59,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Employee(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Person\n",
    "    ---\n",
    "    hire_date : date    \n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Instructor(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Employee\n",
    "    ---\n",
    "    department : varchar(30)\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Student(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Person\n",
    "    ---\n",
    "    admission_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 60,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"620pt\" height=\"256pt\" viewBox=\"0.00 0.00 620.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 616,-252 616,4 -4,4\"/>\n",
       "<!-- Subject -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"58.5,-248 1.5,-248 1.5,-213 58.5,-213 58.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"9.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"60,-177 0,-177 0,-142 60,-142 60,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-212.8C30,-201.95 30,-187.87 30,-177.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"145.5,-177 78.5,-177 78.5,-142 145.5,-142 145.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"86.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"137.5,-106 86.5,-106 86.5,-71 137.5,-71 137.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"94.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M112,-141.8C112,-130.95 112,-116.87 112,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"232,-177 164,-177 164,-142 232,-142 232,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"198\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"227.5,-106 168.5,-106 168.5,-71 227.5,-71 227.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"198\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M198,-141.8C198,-130.95 198,-116.87 198,-106.05\"/>\n",
       "</g>\n",
       "<!-- Person -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Person</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"person_id            \r",
       "------------------------------\r",
       "date_of_birth        \r",
       "gender               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"354.5,-248 299.5,-248 299.5,-213 354.5,-213 354.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"307.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Person</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Employee</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "hire_date            \r",
       "\">\n",
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       "<text text-anchor=\"middle\" x=\"286\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Employee</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Employee -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Person-&gt;Employee</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M317.08,-212.8C310.63,-201.95 302.26,-187.87 295.83,-177.05\"/>\n",
       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node18\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node18\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "admission_date       \r",
       "\">\n",
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       "<text text-anchor=\"middle\" x=\"369\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Student</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Student -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Person-&gt;Student</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M337.17,-212.8C343.77,-201.95 352.34,-187.87 358.93,-177.05\"/>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node21\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node21\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"52,-106 8,-106 8,-71 52,-71 52,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"16\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-141.8C30,-130.95 30,-116.87 30,-106.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"134.5,-35 89.5,-35 89.5,0 134.5,0 134.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"97.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"479.5,-248 426.5,-248 426.5,-213 479.5,-213 479.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"434.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node16\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node16\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"490,-177 416,-177 416,-142 490,-142 490,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"424\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M453,-212.8C453,-201.95 453,-187.87 453,-177.05\"/>\n",
       "</g>\n",
       "<!-- Book -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Book</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"isbn                 \r",
       "------------------------------\r",
       "title                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"542,-248 498,-248 498,-213 542,-213 542,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"506\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Book</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- AuthorBook -->\n",
       "<g id=\"node20\" class=\"node\">\n",
       "<title>AuthorBook</title>\n",
       "<g id=\"a_node20\"><a xlink:title=\"→ Author\r",
       "→ Book\r",
       "------------------------------\r",
       "order                \r",
       "UNIQUE INDEX (isbn, order)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"607,-177 527,-177 527,-142 607,-142 607,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"567\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">AuthorBook</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Book-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M531.38,-212.8C538.77,-201.95 548.36,-187.87 555.73,-177.05\"/>\n",
       "</g>\n",
       "<!-- Author -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Author</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"author_id            \r",
       "------------------------------\r",
       "name                 \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"612,-248 560,-248 560,-213 612,-213 612,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"568\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Author</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Author&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Author-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M581.4,-212.8C578.41,-201.95 574.54,-187.87 571.56,-177.05\"/>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M112,-70.8C112,-59.95 112,-45.87 112,-35.05\"/>\n",
       "</g>\n",
       "<!-- Instructor -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Instructor</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "department           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"318.5,-106 253.5,-106 253.5,-71 318.5,-71 318.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"286\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Instructor</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Instructor -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Employee-&gt;Instructor</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M286,-141.8C286,-130.95 286,-116.87 286,-106.05\"/>\n",
       "</g>\n",
       "<!-- Cell -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"49,-35 11,-35 11,0 49,0 49,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"19\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node15\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node15\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"485.5,-106 420.5,-106 420.5,-71 485.5,-71 485.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"428.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M453,-141.8C453,-130.95 453,-116.87 453,-106.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node17\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node17\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"221.5,-248 174.5,-248 174.5,-213 221.5,-213 221.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"182.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge13\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M198,-212.8C198,-201.95 198,-187.87 198,-177.05\"/>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node19\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node19\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"144,-248 80,-248 80,-213 144,-213 144,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"88\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge14\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M112,-212.8C112,-201.95 112,-187.87 112,-177.05\"/>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge15\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M30,-70.8C30,-59.95 30,-45.87 30,-35.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb3fe1a0>"
      ]
     },
     "execution_count": 60,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Directed graphs "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 61,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Subordinate(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Employee\n",
    "    ---\n",
    "    -> Employee.proj(manager_id=\"person_id\")\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 62,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"644pt\" height=\"256pt\" viewBox=\"0.00 0.00 644.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 640,-252 640,4 -4,4\"/>\n",
       "<!-- 0 -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>0</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"22\" cy=\"-88.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"22\" y=\"-88.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">0</text>\n",
       "</g>\n",
       "<!-- Subordinate -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Subordinate</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "→ Employee.proj(manager_id=&quot;person_id&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"82,-35 0,-35 0,0 82,0 82,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"41\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Subordinate</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 0&#45;&gt;Subordinate -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>0-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M22.33,-86.3C23.98,-80.33 31.42,-53.29 36.4,-35.22\"/>\n",
       "</g>\n",
       "<!-- AuthorBook -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>AuthorBook</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Author\r",
       "→ Book\r",
       "------------------------------\r",
       "order                \r",
       "UNIQUE INDEX (isbn, order)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"294,-177 214,-177 214,-142 294,-142 294,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"254\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">AuthorBook</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"364,-106 320,-106 320,-71 364,-71 364,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"328\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Cell -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"361,-35 323,-35 323,0 361,0 361,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"331\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M342,-70.8C342,-59.95 342,-45.87 342,-35.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"446.5,-35 401.5,-35 401.5,0 446.5,0 446.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"409.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"372,-177 312,-177 312,-142 372,-142 372,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"320\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M342,-141.8C342,-130.95 342,-116.87 342,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"539.5,-106 480.5,-106 480.5,-71 539.5,-71 539.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"510\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"449.5,-106 398.5,-106 398.5,-71 449.5,-71 449.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"406.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M424,-70.8C424,-59.95 424,-45.87 424,-35.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"370.5,-248 313.5,-248 313.5,-213 370.5,-213 370.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"321.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M342,-212.8C342,-201.95 342,-187.87 342,-177.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"636,-177 562,-177 562,-142 636,-142 636,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"570\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"631.5,-106 566.5,-106 566.5,-71 631.5,-71 631.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"574.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M599,-141.8C599,-130.95 599,-116.87 599,-106.05\"/>\n",
       "</g>\n",
       "<!-- Employee -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Employee</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "hire_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"94.5,-177 23.5,-177 23.5,-142 94.5,-142 94.5,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"59\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Employee</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;0 -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Employee-&gt;0</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M50.04,-141.8C40.46,-123.93 26.18,-97.29 22.76,-90.91\"/>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Subordinate -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Employee-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M56.86,-141.89C53.4,-114.95 46.6,-62.02 43.13,-35.09\"/>\n",
       "</g>\n",
       "<!-- Instructor -->\n",
       "<g id=\"node22\" class=\"node\">\n",
       "<title>Instructor</title>\n",
       "<g id=\"a_node22\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "department           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"152.5,-106 87.5,-106 87.5,-71 152.5,-71 152.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"120\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Instructor</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Instructor -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Employee-&gt;Instructor</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M73.77,-141.8C83.36,-130.95 95.81,-116.87 105.37,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"544,-177 476,-177 476,-142 544,-142 544,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"510\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M510,-141.8C510,-130.95 510,-116.87 510,-106.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node15\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node15\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"457.5,-177 390.5,-177 390.5,-142 457.5,-142 457.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"398.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M424,-141.8C424,-130.95 424,-116.87 424,-106.05\"/>\n",
       "</g>\n",
       "<!-- Person -->\n",
       "<g id=\"node16\" class=\"node\">\n",
       "<title>Person</title>\n",
       "<g id=\"a_node16\"><a xlink:title=\"person_id            \r",
       "------------------------------\r",
       "date_of_birth        \r",
       "gender               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"124.5,-248 69.5,-248 69.5,-213 124.5,-213 124.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"77.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Person</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Employee -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Person-&gt;Employee</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M87.8,-212.8C81.83,-201.95 74.07,-187.87 68.11,-177.05\"/>\n",
       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node23\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node23\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "admission_date       \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"171,-177 113,-177 113,-142 171,-142 171,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"142\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Student</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Student -->\n",
       "<g id=\"edge13\" class=\"edge\">\n",
       "<title>Person-&gt;Student</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M107.89,-212.8C114.97,-201.95 124.15,-187.87 131.21,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node17\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node17\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"625.5,-248 572.5,-248 572.5,-213 625.5,-213 625.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"580.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge14\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M599,-212.8C599,-201.95 599,-187.87 599,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node18\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node18\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"533.5,-248 486.5,-248 486.5,-213 533.5,-213 533.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"494.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge15\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M510,-212.8C510,-201.95 510,-187.87 510,-177.05\"/>\n",
       "</g>\n",
       "<!-- Author -->\n",
       "<g id=\"node19\" class=\"node\">\n",
       "<title>Author</title>\n",
       "<g id=\"a_node19\"><a xlink:title=\"author_id            \r",
       "------------------------------\r",
       "name                 \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"223,-248 171,-248 171,-213 223,-213 223,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"179\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Author</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Author&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge16\" class=\"edge\">\n",
       "<title>Author-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M210.8,-212.8C219.76,-201.95 231.39,-187.87 240.33,-177.05\"/>\n",
       "</g>\n",
       "<!-- Book -->\n",
       "<g id=\"node20\" class=\"node\">\n",
       "<title>Book</title>\n",
       "<g id=\"a_node20\"><a xlink:title=\"isbn                 \r",
       "------------------------------\r",
       "title                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"285,-248 241,-248 241,-213 285,-213 285,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"249\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Book</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge17\" class=\"edge\">\n",
       "<title>Book-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M260.82,-212.8C259.41,-201.95 257.57,-187.87 256.16,-177.05\"/>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node21\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node21\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"456,-248 392,-248 392,-213 456,-213 456,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"400\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge18\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M424,-212.8C424,-201.95 424,-187.87 424,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb3ffb20>"
      ]
     },
     "execution_count": 62,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 63,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Neuron(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    neuron : int\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Synapse(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    synapse_id : int\n",
    "    ---\n",
    "    -> Neuron.proj(pre=\"neuron\")\n",
    "    -> Neuron.proj(post=\"neuron\")    \n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 64,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"688pt\" height=\"256pt\" viewBox=\"0.00 0.00 688.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 684,-252 684,4 -4,4\"/>\n",
       "<!-- 1 -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>1</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"14\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"14\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">1</text>\n",
       "</g>\n",
       "<!-- Synapse -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Synapse</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"synapse_id           \r",
       "------------------------------\r",
       "→ Neuron.proj(pre=&quot;neuron&quot;)\r",
       "→ Neuron.proj(post=&quot;neuron&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"64,-106 0,-106 0,-71 64,-71 64,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Synapse</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 1&#45;&gt;Synapse -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>1-&gt;Synapse</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M14.31,-157.3C15.87,-151.33 22.92,-124.29 27.64,-106.22\"/>\n",
       "</g>\n",
       "<!-- 2 -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>2</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"49\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"49\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">2</text>\n",
       "</g>\n",
       "<!-- 2&#45;&gt;Synapse -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>2-&gt;Synapse</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M48.7,-157.3C47.23,-151.33 40.57,-124.29 36.12,-106.22\"/>\n",
       "</g>\n",
       "<!-- 3 -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>3</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"91\" cy=\"-88.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"91\" y=\"-88.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">3</text>\n",
       "</g>\n",
       "<!-- Subordinate -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Subordinate</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "→ Employee.proj(manager_id=&quot;person_id&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"151,-35 69,-35 69,0 151,0 151,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"110\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Subordinate</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 3&#45;&gt;Subordinate -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>3-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M91.33,-86.3C92.98,-80.33 100.42,-53.29 105.4,-35.22\"/>\n",
       "</g>\n",
       "<!-- AuthorBook -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>AuthorBook</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"→ Author\r",
       "→ Book\r",
       "------------------------------\r",
       "order                \r",
       "UNIQUE INDEX (isbn, order)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"338,-177 258,-177 258,-142 338,-142 338,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"298\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">AuthorBook</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"408,-106 364,-106 364,-71 408,-71 408,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"372\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Cell -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"405,-35 367,-35 367,0 405,0 405,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"375\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M386,-70.8C386,-59.95 386,-45.87 386,-35.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"490.5,-35 445.5,-35 445.5,0 490.5,0 490.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"453.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"416,-177 356,-177 356,-142 416,-142 416,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"364\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M386,-141.8C386,-130.95 386,-116.87 386,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"583.5,-106 524.5,-106 524.5,-71 583.5,-71 583.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"554\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"493.5,-106 442.5,-106 442.5,-71 493.5,-71 493.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"450.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M468,-70.8C468,-59.95 468,-45.87 468,-35.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"414.5,-248 357.5,-248 357.5,-213 414.5,-213 414.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"365.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M386,-212.8C386,-201.95 386,-187.87 386,-177.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"680,-177 606,-177 606,-142 680,-142 680,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"614\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node16\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node16\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"675.5,-106 610.5,-106 610.5,-71 675.5,-71 675.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"618.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M643,-141.8C643,-130.95 643,-116.87 643,-106.05\"/>\n",
       "</g>\n",
       "<!-- Employee -->\n",
       "<g id=\"node15\" class=\"node\">\n",
       "<title>Employee</title>\n",
       "<g id=\"a_node15\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "hire_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"163.5,-177 92.5,-177 92.5,-142 163.5,-142 163.5,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"128\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Employee</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;3 -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Employee-&gt;3</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M119.04,-141.8C109.46,-123.93 95.18,-97.29 91.76,-90.91\"/>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Subordinate -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Employee-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M125.86,-141.89C122.4,-114.95 115.6,-62.02 112.13,-35.09\"/>\n",
       "</g>\n",
       "<!-- Instructor -->\n",
       "<g id=\"node26\" class=\"node\">\n",
       "<title>Instructor</title>\n",
       "<g id=\"a_node26\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "department           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"221.5,-106 156.5,-106 156.5,-71 221.5,-71 221.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"189\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Instructor</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Instructor -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Employee-&gt;Instructor</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M142.77,-141.8C152.36,-130.95 164.81,-116.87 174.37,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node17\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node17\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"588,-177 520,-177 520,-142 588,-142 588,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"554\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M554,-141.8C554,-130.95 554,-116.87 554,-106.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node18\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node18\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"501.5,-177 434.5,-177 434.5,-142 501.5,-142 501.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"442.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge13\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M468,-141.8C468,-130.95 468,-116.87 468,-106.05\"/>\n",
       "</g>\n",
       "<!-- Person -->\n",
       "<g id=\"node19\" class=\"node\">\n",
       "<title>Person</title>\n",
       "<g id=\"a_node19\"><a xlink:title=\"person_id            \r",
       "------------------------------\r",
       "date_of_birth        \r",
       "gender               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"171.5,-248 116.5,-248 116.5,-213 171.5,-213 171.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"124.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Person</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Employee -->\n",
       "<g id=\"edge14\" class=\"edge\">\n",
       "<title>Person-&gt;Employee</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M140.13,-212.8C137.61,-201.95 134.35,-187.87 131.84,-177.05\"/>\n",
       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node27\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node27\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "admission_date       \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"240,-177 182,-177 182,-142 240,-142 240,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"211\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Student</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Student -->\n",
       "<g id=\"edge15\" class=\"edge\">\n",
       "<title>Person-&gt;Student</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M160.22,-212.8C170.75,-201.95 184.43,-187.87 194.93,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node20\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node20\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"669.5,-248 616.5,-248 616.5,-213 669.5,-213 669.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"624.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge16\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M643,-212.8C643,-201.95 643,-187.87 643,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node21\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node21\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"577.5,-248 530.5,-248 530.5,-213 577.5,-213 577.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"538.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge17\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M554,-212.8C554,-201.95 554,-187.87 554,-177.05\"/>\n",
       "</g>\n",
       "<!-- Author -->\n",
       "<g id=\"node22\" class=\"node\">\n",
       "<title>Author</title>\n",
       "<g id=\"a_node22\"><a xlink:title=\"author_id            \r",
       "------------------------------\r",
       "name                 \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"267,-248 215,-248 215,-213 267,-213 267,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"223\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Author</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Author&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge18\" class=\"edge\">\n",
       "<title>Author-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M254.8,-212.8C263.76,-201.95 275.39,-187.87 284.33,-177.05\"/>\n",
       "</g>\n",
       "<!-- Book -->\n",
       "<g id=\"node23\" class=\"node\">\n",
       "<title>Book</title>\n",
       "<g id=\"a_node23\"><a xlink:title=\"isbn                 \r",
       "------------------------------\r",
       "title                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"329,-248 285,-248 285,-213 329,-213 329,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"293\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Book</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge19\" class=\"edge\">\n",
       "<title>Book-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M304.82,-212.8C303.41,-201.95 301.57,-187.87 300.16,-177.05\"/>\n",
       "</g>\n",
       "<!-- Neuron -->\n",
       "<g id=\"node24\" class=\"node\">\n",
       "<title>Neuron</title>\n",
       "<g id=\"a_node24\"><a xlink:title=\"neuron               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"60,-248 4,-248 4,-213 60,-213 60,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"12\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Neuron</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Neuron&#45;&gt;1 -->\n",
       "<g id=\"edge20\" class=\"edge\">\n",
       "<title>Neuron-&gt;1</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M27.64,-212.8C22.98,-194.93 16.03,-168.29 14.37,-161.91\"/>\n",
       "</g>\n",
       "<!-- Neuron&#45;&gt;2 -->\n",
       "<g id=\"edge21\" class=\"edge\">\n",
       "<title>Neuron-&gt;2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M36.12,-212.8C40.52,-194.93 47.08,-168.29 48.65,-161.91\"/>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node25\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node25\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"500,-248 436,-248 436,-213 500,-213 500,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"444\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge22\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M468,-212.8C468,-201.95 468,-187.87 468,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa118f4b040>"
      ]
     },
     "execution_count": 64,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "```sql\n",
    "\n",
    "CREATE TABLE managed_by (\n",
    "   person_id : int NOT NULL,\n",
    "   manager_id : int NOT NULL,\n",
    "   \n",
    "   PRIMARY KEY (person_id),\n",
    "   \n",
    "   FOREIGN KEY (person_id) REFERENCES employee (person_id),\n",
    "   FOREIGN KEY (manager_id) reference employee (person_id))\n",
    "   "
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Undirected graphs"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 65,
   "metadata": {},
   "outputs": [],
   "source": [
    "# direcated friendship = full directed graph capability\n",
    "@schema\n",
    "class Friendship(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Person.proj(friend1 = \"person_id\")\n",
    "    -> Person.proj(friend2 = \"person_id\")\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 66,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 819,-252 819,4 -4,4\"/>\n",
       "<!-- 4 -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>4</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"37\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
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       "</g>\n",
       "<!-- Friendship -->\n",
       "<g id=\"node30\" class=\"node\">\n",
       "<title>Friendship</title>\n",
       "<g id=\"a_node30\"><a xlink:title=\"→ Person.proj(friend1=&quot;person_id&quot;)\r",
       "→ Person.proj(friend2=&quot;person_id&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"74,-106 0,-106 0,-71 74,-71 74,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"37\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Friendship</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 4&#45;&gt;Friendship -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>4-&gt;Friendship</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M37,-157.3C37,-151.33 37,-124.29 37,-106.22\"/>\n",
       "</g>\n",
       "<!-- 5 -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>5</title>\n",
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       "<!-- 5&#45;&gt;Friendship -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>5-&gt;Friendship</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M71.51,-157.52C68.71,-152.02 54.73,-124.45 45.44,-106.14\"/>\n",
       "</g>\n",
       "<!-- 6 -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>6</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"284\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"284\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">6</text>\n",
       "</g>\n",
       "<!-- Synapse -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Synapse</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"synapse_id           \r",
       "------------------------------\r",
       "→ Neuron.proj(pre=&quot;neuron&quot;)\r",
       "→ Neuron.proj(post=&quot;neuron&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"327,-106 263,-106 263,-71 327,-71 327,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"271\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Synapse</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 6&#45;&gt;Synapse -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>6-&gt;Synapse</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M284.19,-157.3C285.14,-151.33 289.45,-124.29 292.33,-106.22\"/>\n",
       "</g>\n",
       "<!-- 7 -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>7</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"319\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"319\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">7</text>\n",
       "</g>\n",
       "<!-- 7&#45;&gt;Synapse -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>7-&gt;Synapse</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M318.66,-157.52C316.75,-152.02 307.15,-124.45 300.79,-106.14\"/>\n",
       "</g>\n",
       "<!-- 8 -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>8</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"101\" cy=\"-88.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"101\" y=\"-88.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">8</text>\n",
       "</g>\n",
       "<!-- Subordinate -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Subordinate</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "→ Employee.proj(manager_id=&quot;person_id&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"161,-35 79,-35 79,0 161,0 161,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"120\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Subordinate</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 8&#45;&gt;Subordinate -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>8-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M101.33,-86.3C102.98,-80.33 110.42,-53.29 115.4,-35.22\"/>\n",
       "</g>\n",
       "<!-- AuthorBook -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>AuthorBook</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"→ Author\r",
       "→ Book\r",
       "------------------------------\r",
       "order                \r",
       "UNIQUE INDEX (isbn, order)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"465,-177 385,-177 385,-142 465,-142 465,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"425\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">AuthorBook</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"543,-106 499,-106 499,-71 543,-71 543,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"507\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Cell -->\n",
       "<g id=\"node15\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node15\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"540,-35 502,-35 502,0 540,0 540,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"510\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M521,-70.8C521,-59.95 521,-45.87 521,-35.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"625.5,-35 580.5,-35 580.5,0 625.5,0 625.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"588.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"551,-177 491,-177 491,-142 551,-142 551,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"499\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M521,-141.8C521,-130.95 521,-116.87 521,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"718.5,-106 659.5,-106 659.5,-71 718.5,-71 718.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"689\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"628.5,-106 577.5,-106 577.5,-71 628.5,-71 628.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"585.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M603,-70.8C603,-59.95 603,-45.87 603,-35.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"549.5,-248 492.5,-248 492.5,-213 549.5,-213 549.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"500.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M521,-212.8C521,-201.95 521,-187.87 521,-177.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node16\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node16\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"815,-177 741,-177 741,-142 815,-142 815,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"749\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node18\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node18\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"810.5,-106 745.5,-106 745.5,-71 810.5,-71 810.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"753.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M778,-141.8C778,-130.95 778,-116.87 778,-106.05\"/>\n",
       "</g>\n",
       "<!-- Employee -->\n",
       "<g id=\"node17\" class=\"node\">\n",
       "<title>Employee</title>\n",
       "<g id=\"a_node17\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "hire_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"169.5,-177 98.5,-177 98.5,-142 169.5,-142 169.5,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"134\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Employee</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;8 -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Employee-&gt;8</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M126.01,-141.8C117.47,-123.93 104.73,-97.29 101.67,-90.91\"/>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Subordinate -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Employee-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M132.34,-141.89C129.64,-114.95 124.35,-62.02 121.66,-35.09\"/>\n",
       "</g>\n",
       "<!-- Instructor -->\n",
       "<g id=\"node28\" class=\"node\">\n",
       "<title>Instructor</title>\n",
       "<g id=\"a_node28\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "department           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"231.5,-106 166.5,-106 166.5,-71 231.5,-71 231.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"199\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Instructor</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Instructor -->\n",
       "<g id=\"edge13\" class=\"edge\">\n",
       "<title>Employee-&gt;Instructor</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M149.73,-141.8C159.95,-130.95 173.22,-116.87 183.41,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node19\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node19\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"723,-177 655,-177 655,-142 723,-142 723,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"689\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge14\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M689,-141.8C689,-130.95 689,-116.87 689,-106.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node20\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node20\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"636.5,-177 569.5,-177 569.5,-142 636.5,-142 636.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"577.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge15\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M603,-141.8C603,-130.95 603,-116.87 603,-106.05\"/>\n",
       "</g>\n",
       "<!-- Person -->\n",
       "<g id=\"node21\" class=\"node\">\n",
       "<title>Person</title>\n",
       "<g id=\"a_node21\"><a xlink:title=\"person_id            \r",
       "------------------------------\r",
       "date_of_birth        \r",
       "gender               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"130.5,-248 75.5,-248 75.5,-213 130.5,-213 130.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"83.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Person</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;4 -->\n",
       "<g id=\"edge16\" class=\"edge\">\n",
       "<title>Person-&gt;4</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M87.02,-212.8C69.93,-194.93 44.45,-168.29 38.35,-161.91\"/>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;5 -->\n",
       "<g id=\"edge17\" class=\"edge\">\n",
       "<title>Person-&gt;5</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M95.5,-212.8C87.47,-194.93 75.5,-168.29 72.63,-161.91\"/>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Employee -->\n",
       "<g id=\"edge18\" class=\"edge\">\n",
       "<title>Person-&gt;Employee</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M110.5,-212.8C115.38,-201.95 121.7,-187.87 126.56,-177.05\"/>\n",
       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node29\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node29\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "admission_date       \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"246,-177 188,-177 188,-142 246,-142 246,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"217\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Student</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Student -->\n",
       "<g id=\"edge19\" class=\"edge\">\n",
       "<title>Person-&gt;Student</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M130.31,-212.97C148.22,-202.13 171.57,-188 189.52,-177.13\"/>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node22\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node22\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"804.5,-248 751.5,-248 751.5,-213 804.5,-213 804.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"759.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge20\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M778,-212.8C778,-201.95 778,-187.87 778,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node23\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node23\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"712.5,-248 665.5,-248 665.5,-213 712.5,-213 712.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"673.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge21\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M689,-212.8C689,-201.95 689,-187.87 689,-177.05\"/>\n",
       "</g>\n",
       "<!-- Author -->\n",
       "<g id=\"node24\" class=\"node\">\n",
       "<title>Author</title>\n",
       "<g id=\"a_node24\"><a xlink:title=\"author_id            \r",
       "------------------------------\r",
       "name                 \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"399,-248 347,-248 347,-213 399,-213 399,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"355\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Author</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Author&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge22\" class=\"edge\">\n",
       "<title>Author-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M385.59,-212.8C393.76,-201.95 404.38,-187.87 412.53,-177.05\"/>\n",
       "</g>\n",
       "<!-- Book -->\n",
       "<g id=\"node25\" class=\"node\">\n",
       "<title>Book</title>\n",
       "<g id=\"a_node25\"><a xlink:title=\"isbn                 \r",
       "------------------------------\r",
       "title                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"461,-248 417,-248 417,-213 461,-213 461,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"425\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Book</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge23\" class=\"edge\">\n",
       "<title>Book-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M435.61,-212.8C433.41,-201.95 430.55,-187.87 428.36,-177.05\"/>\n",
       "</g>\n",
       "<!-- Neuron -->\n",
       "<g id=\"node26\" class=\"node\">\n",
       "<title>Neuron</title>\n",
       "<g id=\"a_node26\"><a xlink:title=\"neuron               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"329,-248 273,-248 273,-213 329,-213 329,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"281\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Neuron</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Neuron&#45;&gt;6 -->\n",
       "<g id=\"edge24\" class=\"edge\">\n",
       "<title>Neuron-&gt;6</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M296.88,-212.8C292.48,-194.93 285.92,-168.29 284.35,-161.91\"/>\n",
       "</g>\n",
       "<!-- Neuron&#45;&gt;7 -->\n",
       "<g id=\"edge25\" class=\"edge\">\n",
       "<title>Neuron-&gt;7</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M305.36,-212.8C310.02,-194.93 316.97,-168.29 318.63,-161.91\"/>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node27\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node27\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"635,-248 571,-248 571,-213 635,-213 635,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"579\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge26\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M603,-212.8C603,-201.95 603,-187.87 603,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0b851e4d0>"
      ]
     },
     "execution_count": 66,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 67,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Order(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    order_id : int\n",
    "    ---\n",
    "    order_date : date\n",
    "    \"\"\"\n",
    "    \n",
    "    class Item(dj.Part):\n",
    "        definition = \"\"\"\n",
    "        -> master\n",
    "        order_item : int\n",
    "        ---\n",
    "        \n",
    "        \"\"\""
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Puzzle: \n",
    "Cities and states.\n",
    "1. Each city belongs to one state. \n",
    "2. Each state has one capital.\n",
    "3. A capital is a city.\n",
    "4. A capital must be in the same state. \n",
    "\n",
    "* Tables\n",
    "* Primary keys\n",
    "* Foreign keys"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 68,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class State(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    st : char(2)\n",
    "    ---\n",
    "    state : varchar(30)\n",
    "    \"\"\"\n",
    "\n",
    "State.insert((\n",
    "    (\"WA\", \"Washington\"),\n",
    "    (\"TX\", \"Texas\"),\n",
    "    (\"AK\", \"Alaska\"),\n",
    "    (\"LA\", \"Louisiana\")\n",
    "))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 69,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class City(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> State\n",
    "    city_name : varchar(30)\n",
    "    ---\n",
    "    capital = null : enum(\"YES\")\n",
    "    unique index(st, capital)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 70,
   "metadata": {},
   "outputs": [],
   "source": [
    "City.delete_quick()\n",
    "\n",
    "City.insert1((\"WA\", \"Seattle\", None))\n",
    "City.insert1((\"TX\", \"Austin\", \"YES\"))\n",
    "City.insert1((\"TX\", \"Houston\", None))\n",
    "City.insert1((\"WA\", \"Olympia\", \"YES\"))\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 71,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">st</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">city_name</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">capital</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>TX</td>\n",
       "<td>Houston</td>\n",
       "<td>None</td></tr><tr><td>TX</td>\n",
       "<td>Austin</td>\n",
       "<td>YES</td></tr><tr><td>WA</td>\n",
       "<td>Seattle</td>\n",
       "<td>None</td></tr><tr><td>WA</td>\n",
       "<td>Olympia</td>\n",
       "<td>YES</td> </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 4</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*st    *city_name    capital    \n",
       "+----+ +-----------+ +---------+\n",
       "TX     Houston       None       \n",
       "TX     Austin        YES        \n",
       "WA     Seattle       None       \n",
       "WA     Olympia       YES        \n",
       " (Total: 4)"
      ]
     },
     "execution_count": 71,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "City()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 72,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class State2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    state : char (2)\n",
    "    ---\n",
    "    state_name : varchar(30)\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class City2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> State2\n",
    "    city_name : varchar(30)\n",
    "    \"\"\"\n",
    "    \n",
    "@schema\n",
    "class Capital2(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> State2\n",
    "    ---\n",
    "    -> City2\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 73,
   "metadata": {},
   "outputs": [],
   "source": [
    "State2.delete_quick()\n",
    "City2.delete_quick()\n",
    "\n",
    "State2.insert((\n",
    "    (\"WA\", \"Washington\"),\n",
    "    (\"TX\", \"Texas\"),\n",
    "    (\"AK\", \"Alaska\"),\n",
    "    (\"LA\", \"Louisiana\")\n",
    "))\n",
    "\n",
    "City2.insert1((\"WA\", \"Seattle\"))\n",
    "City2.insert1((\"TX\", \"Austin\"))\n",
    "City2.insert1((\"TX\", \"Houston\"))\n",
    "City2.insert1((\"WA\", \"Olympia\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 74,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"1066pt\" height=\"256pt\" viewBox=\"0.00 0.00 1066.00 256.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 252)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-252 1062,-252 1062,4 -4,4\"/>\n",
       "<!-- 9 -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>9</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"37\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"37\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">9</text>\n",
       "</g>\n",
       "<!-- Friendship -->\n",
       "<g id=\"node35\" class=\"node\">\n",
       "<title>Friendship</title>\n",
       "<g id=\"a_node35\"><a xlink:title=\"→ Person.proj(friend1=&quot;person_id&quot;)\r",
       "→ Person.proj(friend2=&quot;person_id&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"74,-106 0,-106 0,-71 74,-71 74,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"37\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Friendship</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 9&#45;&gt;Friendship -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>9-&gt;Friendship</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M37,-157.3C37,-151.33 37,-124.29 37,-106.22\"/>\n",
       "</g>\n",
       "<!-- 10 -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>10</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"73\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"73\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">10</text>\n",
       "</g>\n",
       "<!-- 10&#45;&gt;Friendship -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>10-&gt;Friendship</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M72.49,-157.52C69.62,-152.02 55.23,-124.45 45.68,-106.14\"/>\n",
       "</g>\n",
       "<!-- 11 -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>11</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"285\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"285\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">11</text>\n",
       "</g>\n",
       "<!-- Synapse -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Synapse</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"synapse_id           \r",
       "------------------------------\r",
       "→ Neuron.proj(pre=&quot;neuron&quot;)\r",
       "→ Neuron.proj(post=&quot;neuron&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"328,-106 264,-106 264,-71 328,-71 328,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"272\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Synapse</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 11&#45;&gt;Synapse -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>11-&gt;Synapse</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M285.19,-157.3C286.14,-151.33 290.45,-124.29 293.33,-106.22\"/>\n",
       "</g>\n",
       "<!-- 12 -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>12</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"321\" cy=\"-159.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"321\" y=\"-159.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">12</text>\n",
       "</g>\n",
       "<!-- 12&#45;&gt;Synapse -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>12-&gt;Synapse</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M320.65,-157.52C318.65,-152.02 308.66,-124.45 302.03,-106.14\"/>\n",
       "</g>\n",
       "<!-- 13 -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>13</title>\n",
       "<ellipse fill=\"#ff8800\" fill-opacity=\"0.501961\" stroke=\"#ff8800\" stroke-opacity=\"0.501961\" cx=\"101\" cy=\"-88.5\" rx=\"2\" ry=\"2\"/>\n",
       "<text text-anchor=\"middle\" x=\"101\" y=\"-88.2\" font-family=\"arial\" font-size=\"1.00\" fill=\"#ff8800\" fill-opacity=\"0.501961\">13</text>\n",
       "</g>\n",
       "<!-- Subordinate -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Subordinate</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "→ Employee.proj(manager_id=&quot;person_id&quot;)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"161,-35 79,-35 79,0 161,0 161,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"120\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Subordinate</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- 13&#45;&gt;Subordinate -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>13-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M101.33,-86.3C102.98,-80.33 110.42,-53.29 115.4,-35.22\"/>\n",
       "</g>\n",
       "<!-- AuthorBook -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>AuthorBook</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"→ Author\r",
       "→ Book\r",
       "------------------------------\r",
       "order                \r",
       "UNIQUE INDEX (isbn, order)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"467,-177 387,-177 387,-142 467,-142 467,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"427\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">AuthorBook</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Scan</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Session\r",
       "scan_id              \r",
       "------------------------------\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"545,-106 501,-106 501,-71 545,-71 545,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"509\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Cell -->\n",
       "<g id=\"node17\" class=\"node\">\n",
       "<title>Cell</title>\n",
       "<g id=\"a_node17\"><a xlink:title=\"→ Scan\r",
       "cell_id              \r",
       "------------------------------\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"542,-35 504,-35 504,0 542,0 542,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"512\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan&#45;&gt;Cell -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Scan-&gt;Cell</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M523,-70.8C523,-59.95 523,-45.87 523,-35.05\"/>\n",
       "</g>\n",
       "<!-- Cell2 -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>Cell2</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"cell_id              \r",
       "------------------------------\r",
       "→ Scan2\r",
       "cell_type            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"627.5,-35 582.5,-35 582.5,0 627.5,0 627.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"590.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Cell2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Session</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"→ Subject\r",
       "session              \r",
       "------------------------------\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"553,-177 493,-177 493,-142 553,-142 553,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"501\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session&#45;&gt;Scan -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Session-&gt;Scan</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M523,-141.8C523,-130.95 523,-116.87 523,-106.05\"/>\n",
       "</g>\n",
       "<!-- Confirm -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Confirm</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"→ Shipment\r",
       "------------------------------\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"720.5,-106 661.5,-106 661.5,-71 720.5,-71 720.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"691\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Confirm</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2 -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Scan2</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"scan_id              \r",
       "------------------------------\r",
       "→ Session2\r",
       "laser_power          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"630.5,-106 579.5,-106 579.5,-71 630.5,-71 630.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"587.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Scan2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Scan2&#45;&gt;Cell2 -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Scan2-&gt;Cell2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M605,-70.8C605,-59.95 605,-45.87 605,-35.05\"/>\n",
       "</g>\n",
       "<!-- State2 -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>State2</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"state                \r",
       "------------------------------\r",
       "state_name           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"894.5,-248 843.5,-248 843.5,-213 894.5,-213 894.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"851.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">State2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- City2 -->\n",
       "<g id=\"node15\" class=\"node\">\n",
       "<title>City2</title>\n",
       "<g id=\"a_node15\"><a xlink:title=\"→ State2\r",
       "city_name            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"869,-177 825,-177 825,-142 869,-142 869,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"833\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">City2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- State2&#45;&gt;City2 -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>State2-&gt;City2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M863.67,-212.8C860.22,-201.95 855.73,-187.87 852.28,-177.05\"/>\n",
       "</g>\n",
       "<!-- Capital2 -->\n",
       "<g id=\"node28\" class=\"node\">\n",
       "<title>Capital2</title>\n",
       "<g id=\"a_node28\"><a xlink:title=\"→ State2\r",
       "------------------------------\r",
       "→ City2\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"894,-106 832,-106 832,-71 894,-71 894,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"863\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Capital2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- State2&#45;&gt;Capital2 -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>State2-&gt;Capital2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M873.14,-212.68C876.92,-195.03 881.43,-166.5 878,-142 876.29,-129.8 872.45,-116.45 869.08,-106.27\"/>\n",
       "</g>\n",
       "<!-- City2&#45;&gt;Capital2 -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>City2-&gt;Capital2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M850.87,-141.8C853.39,-130.95 856.65,-116.87 859.16,-106.05\"/>\n",
       "</g>\n",
       "<!-- Subject -->\n",
       "<g id=\"node16\" class=\"node\">\n",
       "<title>Subject</title>\n",
       "<g id=\"a_node16\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"551.5,-248 494.5,-248 494.5,-213 551.5,-213 551.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"502.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject&#45;&gt;Session -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Subject-&gt;Session</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M523,-212.8C523,-201.95 523,-187.87 523,-177.05\"/>\n",
       "</g>\n",
       "<!-- Shipment2 -->\n",
       "<g id=\"node18\" class=\"node\">\n",
       "<title>Shipment2</title>\n",
       "<g id=\"a_node18\"><a xlink:title=\"shipment_id          \r",
       "------------------------------\r",
       "→ [unique] Order2\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"999,-177 925,-177 925,-142 999,-142 999,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"933\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Shipment2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Confirm2 -->\n",
       "<g id=\"node20\" class=\"node\">\n",
       "<title>Confirm2</title>\n",
       "<g id=\"a_node20\"><a xlink:title=\"confirm_id           \r",
       "------------------------------\r",
       "→ [unique] Shipment2\r",
       "confirm_date         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"994.5,-106 929.5,-106 929.5,-71 994.5,-71 994.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"937.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Confirm2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment2&#45;&gt;Confirm2 -->\n",
       "<g id=\"edge13\" class=\"edge\">\n",
       "<title>Shipment2-&gt;Confirm2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M962,-141.8C962,-130.95 962,-116.87 962,-106.05\"/>\n",
       "</g>\n",
       "<!-- Employee -->\n",
       "<g id=\"node19\" class=\"node\">\n",
       "<title>Employee</title>\n",
       "<g id=\"a_node19\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "hire_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"171.5,-177 100.5,-177 100.5,-142 171.5,-142 171.5,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"136\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Employee</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;13 -->\n",
       "<g id=\"edge14\" class=\"edge\">\n",
       "<title>Employee-&gt;13</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M127.53,-141.8C118.46,-123.93 104.95,-97.29 101.71,-90.91\"/>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Subordinate -->\n",
       "<g id=\"edge15\" class=\"edge\">\n",
       "<title>Employee-&gt;Subordinate</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M134.1,-141.89C131.02,-114.95 124.97,-62.02 121.9,-35.09\"/>\n",
       "</g>\n",
       "<!-- Instructor -->\n",
       "<g id=\"node32\" class=\"node\">\n",
       "<title>Instructor</title>\n",
       "<g id=\"a_node32\"><a xlink:title=\"→ Employee\r",
       "------------------------------\r",
       "department           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"231.5,-106 166.5,-106 166.5,-71 231.5,-71 231.5,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"199\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Instructor</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Employee&#45;&gt;Instructor -->\n",
       "<g id=\"edge16\" class=\"edge\">\n",
       "<title>Employee-&gt;Instructor</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M151.25,-141.8C161.16,-130.95 174.01,-116.87 183.89,-106.05\"/>\n",
       "</g>\n",
       "<!-- Shipment -->\n",
       "<g id=\"node21\" class=\"node\">\n",
       "<title>Shipment</title>\n",
       "<g id=\"a_node21\"><a xlink:title=\"→ Order\r",
       "------------------------------\r",
       "ship_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"725,-177 657,-177 657,-142 725,-142 725,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"691\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shipment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shipment&#45;&gt;Confirm -->\n",
       "<g id=\"edge17\" class=\"edge\">\n",
       "<title>Shipment-&gt;Confirm</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M691,-141.8C691,-130.95 691,-116.87 691,-106.05\"/>\n",
       "</g>\n",
       "<!-- Session2 -->\n",
       "<g id=\"node22\" class=\"node\">\n",
       "<title>Session2</title>\n",
       "<g id=\"a_node22\"><a xlink:title=\"session              \r",
       "------------------------------\r",
       "→ Subject2\r",
       "session_timestamp=&quot;current_timestamp()&quot; \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"638.5,-177 571.5,-177 571.5,-142 638.5,-142 638.5,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"579.5\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Session2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Session2&#45;&gt;Scan2 -->\n",
       "<g id=\"edge18\" class=\"edge\">\n",
       "<title>Session2-&gt;Scan2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M605,-141.8C605,-130.95 605,-116.87 605,-106.05\"/>\n",
       "</g>\n",
       "<!-- Person -->\n",
       "<g id=\"node23\" class=\"node\">\n",
       "<title>Person</title>\n",
       "<g id=\"a_node23\"><a xlink:title=\"person_id            \r",
       "------------------------------\r",
       "date_of_birth        \r",
       "gender               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"132.5,-248 77.5,-248 77.5,-213 132.5,-213 132.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"85.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Person</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;9 -->\n",
       "<g id=\"edge19\" class=\"edge\">\n",
       "<title>Person-&gt;9</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M88.54,-212.8C70.93,-194.93 44.68,-168.29 38.39,-161.91\"/>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;10 -->\n",
       "<g id=\"edge20\" class=\"edge\">\n",
       "<title>Person-&gt;10</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M97.25,-212.8C88.97,-194.93 76.61,-168.29 73.65,-161.91\"/>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Employee -->\n",
       "<g id=\"edge21\" class=\"edge\">\n",
       "<title>Person-&gt;Employee</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M112.5,-212.8C117.38,-201.95 123.7,-187.87 128.56,-177.05\"/>\n",
       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node34\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node34\"><a xlink:title=\"→ Person\r",
       "------------------------------\r",
       "admission_date       \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"248,-177 190,-177 190,-142 248,-142 248,-177\"/>\n",
       "<text text-anchor=\"middle\" x=\"219\" y=\"-156.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Student</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Person&#45;&gt;Student -->\n",
       "<g id=\"edge22\" class=\"edge\">\n",
       "<title>Person-&gt;Student</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M132.31,-212.97C150.22,-202.13 173.57,-188 191.52,-177.13\"/>\n",
       "</g>\n",
       "<!-- Order.Item -->\n",
       "<g id=\"node24\" class=\"node\">\n",
       "<title>Order.Item</title>\n",
       "<g id=\"a_node24\"><a xlink:title=\"→ Order\r",
       "order_item           \r",
       "\">\n",
       "<polygon fill=\"none\" stroke=\"none\" points=\"806.5,-169 743.5,-169 743.5,-150 806.5,-150 806.5,-169\"/>\n",
       "<text text-anchor=\"start\" x=\"751.5\" y=\"-158\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"10.00\">Order.Item</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2 -->\n",
       "<g id=\"node25\" class=\"node\">\n",
       "<title>Order2</title>\n",
       "<g id=\"a_node25\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"988.5,-248 935.5,-248 935.5,-213 988.5,-213 988.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"943.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order2&#45;&gt;Shipment2 -->\n",
       "<g id=\"edge23\" class=\"edge\">\n",
       "<title>Order2-&gt;Shipment2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M962,-212.8C962,-201.95 962,-187.87 962,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order -->\n",
       "<g id=\"node26\" class=\"node\">\n",
       "<title>Order</title>\n",
       "<g id=\"a_node26\"><a xlink:title=\"order_number         \r",
       "------------------------------\r",
       "order_date           \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"798.5,-248 751.5,-248 751.5,-213 798.5,-213 798.5,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"759.5\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Order</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Shipment -->\n",
       "<g id=\"edge24\" class=\"edge\">\n",
       "<title>Order-&gt;Shipment</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M754.67,-212.8C741.46,-201.95 724.32,-187.87 711.15,-177.05\"/>\n",
       "</g>\n",
       "<!-- Order&#45;&gt;Order.Item -->\n",
       "<g id=\"edge25\" class=\"edge\">\n",
       "<title>Order-&gt;Order.Item</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M775,-212.8C775,-199.08 775,-180.19 775,-169.27\"/>\n",
       "</g>\n",
       "<!-- Author -->\n",
       "<g id=\"node27\" class=\"node\">\n",
       "<title>Author</title>\n",
       "<g id=\"a_node27\"><a xlink:title=\"author_id            \r",
       "------------------------------\r",
       "name                 \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"401,-248 349,-248 349,-213 401,-213 401,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"357\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Author</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Author&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge26\" class=\"edge\">\n",
       "<title>Author-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M387.59,-212.8C395.76,-201.95 406.38,-187.87 414.53,-177.05\"/>\n",
       "</g>\n",
       "<!-- Book -->\n",
       "<g id=\"node29\" class=\"node\">\n",
       "<title>Book</title>\n",
       "<g id=\"a_node29\"><a xlink:title=\"isbn                 \r",
       "------------------------------\r",
       "title                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"463,-248 419,-248 419,-213 463,-213 463,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"427\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Book</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Book&#45;&gt;AuthorBook -->\n",
       "<g id=\"edge27\" class=\"edge\">\n",
       "<title>Book-&gt;AuthorBook</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M437.61,-212.8C435.41,-201.95 432.55,-187.87 430.36,-177.05\"/>\n",
       "</g>\n",
       "<!-- Neuron -->\n",
       "<g id=\"node30\" class=\"node\">\n",
       "<title>Neuron</title>\n",
       "<g id=\"a_node30\"><a xlink:title=\"neuron               \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"331,-248 275,-248 275,-213 331,-213 331,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"283\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Neuron</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Neuron&#45;&gt;11 -->\n",
       "<g id=\"edge28\" class=\"edge\">\n",
       "<title>Neuron-&gt;11</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M298.64,-212.8C293.98,-194.93 287.03,-168.29 285.37,-161.91\"/>\n",
       "</g>\n",
       "<!-- Neuron&#45;&gt;12 -->\n",
       "<g id=\"edge29\" class=\"edge\">\n",
       "<title>Neuron-&gt;12</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M307.36,-212.8C312.02,-194.93 318.97,-168.29 320.63,-161.91\"/>\n",
       "</g>\n",
       "<!-- Subject2 -->\n",
       "<g id=\"node31\" class=\"node\">\n",
       "<title>Subject2</title>\n",
       "<g id=\"a_node31\"><a xlink:title=\"subject_id           \r",
       "------------------------------\r",
       "species=&quot;mouse&quot;      \r",
       "sex                  \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"637,-248 573,-248 573,-213 637,-213 637,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"581\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Subject2</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Subject2&#45;&gt;Session2 -->\n",
       "<g id=\"edge30\" class=\"edge\">\n",
       "<title>Subject2-&gt;Session2</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M605,-212.8C605,-201.95 605,-187.87 605,-177.05\"/>\n",
       "</g>\n",
       "<!-- State -->\n",
       "<g id=\"node33\" class=\"node\">\n",
       "<title>State</title>\n",
       "<g id=\"a_node33\"><a xlink:title=\"st                   \r",
       "------------------------------\r",
       "state                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"1058,-248 1014,-248 1014,-213 1058,-213 1058,-248\"/>\n",
       "<text text-anchor=\"start\" x=\"1022\" y=\"-228.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">State</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- City -->\n",
       "<g id=\"node36\" class=\"node\">\n",
       "<title>City</title>\n",
       "<g id=\"a_node36\"><a xlink:title=\"→ State\r",
       "city_name            \r",
       "------------------------------\r",
       "capital=null         \r",
       "UNIQUE INDEX (st, capital)\r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"1055,-177 1017,-177 1017,-142 1055,-142 1055,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"1025\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">City</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- State&#45;&gt;City -->\n",
       "<g id=\"edge31\" class=\"edge\">\n",
       "<title>State-&gt;City</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M1036,-212.8C1036,-201.95 1036,-187.87 1036,-177.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb3fd4e0>"
      ]
     },
     "execution_count": 74,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 75,
   "metadata": {},
   "outputs": [],
   "source": [
    "Capital2.insert1((\"TX\", \"Austin\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 76,
   "metadata": {},
   "outputs": [
    {
     "ename": "DuplicateError",
     "evalue": "(\"Duplicate entry 'TX' for key 'PRIMARY'\", 'To ignore duplicate entries in insert, set skip_duplicates=True')",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mDuplicateError\u001b[0m                            Traceback (most recent call last)",
      "Input \u001b[0;32mIn [76]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mCapital2\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43minsert1\u001b[49m\u001b[43m(\u001b[49m\u001b[43m(\u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mTX\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[38;5;124;43mHouston\u001b[39;49m\u001b[38;5;124;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/datajoint/table.py:334\u001b[0m, in \u001b[0;36mTable.insert1\u001b[0;34m(self, row, **kwargs)\u001b[0m\n\u001b[1;32m    327\u001b[0m \u001b[38;5;28;01mdef\u001b[39;00m \u001b[38;5;21minsert1\u001b[39m(\u001b[38;5;28mself\u001b[39m, row, \u001b[38;5;241m*\u001b[39m\u001b[38;5;241m*\u001b[39mkwargs):\n\u001b[1;32m    328\u001b[0m     \u001b[38;5;124;03m\"\"\"\u001b[39;00m\n\u001b[1;32m    329\u001b[0m \u001b[38;5;124;03m    Insert one data record into the table. For ``kwargs``, see ``insert()``.\u001b[39;00m\n\u001b[1;32m    330\u001b[0m \n\u001b[1;32m    331\u001b[0m \u001b[38;5;124;03m    :param row: a numpy record, a dict-like object, or an ordered sequence to be inserted\u001b[39;00m\n\u001b[1;32m    332\u001b[0m \u001b[38;5;124;03m        as one row.\u001b[39;00m\n\u001b[1;32m    333\u001b[0m \u001b[38;5;124;03m    \"\"\"\u001b[39;00m\n\u001b[0;32m--> 334\u001b[0m     \u001b[38;5;28;43mself\u001b[39;49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43minsert\u001b[49m\u001b[43m(\u001b[49m\u001b[43m(\u001b[49m\u001b[43mrow\u001b[49m\u001b[43m,\u001b[49m\u001b[43m)\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[38;5;241;43m*\u001b[39;49m\u001b[43mkwargs\u001b[49m\u001b[43m)\u001b[49m\n",
      "File \u001b[0;32m~/opt/miniconda3/envs/benv/lib/python3.10/site-packages/datajoint/table.py:443\u001b[0m, in \u001b[0;36mTable.insert\u001b[0;34m(self, rows, replace, skip_duplicates, ignore_extra_fields, allow_direct_insert)\u001b[0m\n\u001b[1;32m    439\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m err\u001b[38;5;241m.\u001b[39msuggest(\n\u001b[1;32m    440\u001b[0m         \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mTo ignore extra fields in insert, set ignore_extra_fields=True\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[1;32m    441\u001b[0m     )\n\u001b[1;32m    442\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m DuplicateError \u001b[38;5;28;01mas\u001b[39;00m err:\n\u001b[0;32m--> 443\u001b[0m     \u001b[38;5;28;01mraise\u001b[39;00m err\u001b[38;5;241m.\u001b[39msuggest(\n\u001b[1;32m    444\u001b[0m         \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mTo ignore duplicate entries in insert, set skip_duplicates=True\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[1;32m    445\u001b[0m     )\n",
      "\u001b[0;31mDuplicateError\u001b[0m: (\"Duplicate entry 'TX' for key 'PRIMARY'\", 'To ignore duplicate entries in insert, set skip_duplicates=True')"
     ]
    }
   ],
   "source": [
    "Capital2.insert1((\"TX\", \"Houston\"))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 77,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">state</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">city_name</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>TX</td>\n",
       "<td>Austin</td></tr><tr><td>TX</td>\n",
       "<td>Houston</td></tr><tr><td>WA</td>\n",
       "<td>Olympia</td></tr><tr><td>WA</td>\n",
       "<td>Seattle</td> </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 4</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*state    *city_name   \n",
       "+-------+ +-----------+\n",
       "TX        Austin       \n",
       "TX        Houston      \n",
       "WA        Olympia      \n",
       "WA        Seattle      \n",
       " (Total: 4)"
      ]
     },
     "execution_count": 77,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "City2()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# In SQL \n",
    "\n",
    "```sql\n",
    "CREATE TABLE state (\n",
    "    state char(2) NOT NULL,\n",
    "    state_name varchar(30) NOT NULL,\n",
    "    PRIMARY KEY (state))\n",
    "    \n",
    "CREATE TABLE city (\n",
    "    state char(2) NOT NULL,\n",
    "    city_name varchar(30) NOT NULL,\n",
    "    PRIMARY KEY (state, city_name),\n",
    "    FOREIGN KEY (state) REFERENCES state(state))\n",
    "\n",
    "CREATE TABLE capital (\n",
    "    state char(2) NOT NULL,\n",
    "    city_name varchar(30) NOT NULL,\n",
    "    PRIMARY KEY (state),\n",
    "    FOREIGN KEY (state, city_name) REFERENCES city (state, city_name))\n",
    "```\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 78,
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (724225854.py, line 1)",
     "output_type": "error",
     "traceback": [
      "\u001b[0;36m  Input \u001b[0;32mIn [78]\u001b[0;36m\u001b[0m\n\u001b[0;31m    ```sql\u001b[0m\n\u001b[0m    ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "\n",
    "```sql\n",
    "CREATE TABLE state (\n",
    "    state char(2),\n",
    "    state_name varchar(30),\n",
    "    capital varchar(30),\n",
    "    PRIMARY KEY (state),\n",
    "    FOREIGN KEY (state, capital) REFERENCES city (state, city_name))\n",
    "    \n",
    "CREATE TABLE city (\n",
    "    state char(2),\n",
    "    city_name varchar(30),\n",
    "    PRIMARY KEY (state, city_name))\n",
    "    FOREIGN KEY (state) REFERENCES state(state)\n",
    "```"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# In SQL \n",
    "\n",
    "```sql\n",
    "CREATE TABLE state (\n",
    "    state char(2) NOT NULL,\n",
    "    state_name varchar(30) NOT NULL,\n",
    "    PRIMARY KEY (state))\n",
    "    \n",
    "CREATE TABLE city (\n",
    "    city_id int NOT NULL,\n",
    "    state char(2) NOT NULL,\n",
    "    city_name varchar(30) NOT NULL,\n",
    "    is_capital enum('yes'),\n",
    "    PRIMARY KEY (state_id),\n",
    "    UNIQUE INDEX(state, is_capital),\n",
    "    FOREIGN KEY (state) REFERENCES state(state))\n",
    "```\n",
    "\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Problem \n",
    "\n",
    "Model a vet clinic. \n",
    "\n",
    "1. Customers bring in pets. Customers are identified by their cell phones. Pets are identified by their nicknames for that customer.\n",
    "\n",
    "2. Pets have a date of birth, species, and date of birth.\n",
    "\n",
    "3. Pets have a list of vaccinations that must be performed for their species.\n",
    "\n",
    "4. Pets have vaccination administration, shot date. "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 90,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Proceed to delete entire schema `shared_vet`? [yes, No]: yes\n"
     ]
    }
   ],
   "source": [
    "schema = dj.Schema('shared_vet')\n",
    "schema.drop()\n",
    "schema = dj.Schema('shared_vet')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 91,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Owner(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    cell_phone : char(10) \n",
    "    ---\n",
    "    full_name : varchar(16)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 92,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Species(dj.Lookup):\n",
    "    definition = \"\"\"\n",
    "    species : varchar(30)\n",
    "    \"\"\"\n",
    "    contents = (('cat',), ('dog',), ('ferret',), ('parrot',))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 93,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">species</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr> <td>cat</td></tr><tr><td>dog</td></tr><tr><td>ferret</td></tr><tr><td>parrot</td> </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 4</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*species   \n",
       "+---------+\n",
       "cat        \n",
       "dog        \n",
       "ferret     \n",
       "parrot     \n",
       " (Total: 4)"
      ]
     },
     "execution_count": 93,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Species()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 94,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Pet(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Owner\n",
    "    -> Species\n",
    "    nickname : varchar(30)\n",
    "    ---\n",
    "    birthdate : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 95,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class RequiredVaccine(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Species\n",
    "    vaccine  : varchar(10)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 96,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"178pt\" height=\"114pt\" viewBox=\"0.00 0.00 178.00 114.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 110)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-110 174,-110 174,4 -4,4\"/>\n",
       "<!-- Pet -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Pet</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Owner\r",
       "→ Species\r",
       "nickname             \r",
       "------------------------------\r",
       "birthdate            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"43.5,-35 8.5,-35 8.5,0 43.5,0 43.5,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"16.5\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Pet</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- RequiredVaccine -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>RequiredVaccine</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"→ Species\r",
       "vaccine              \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"170,-35 62,-35 62,0 170,0 170,-35\"/>\n",
       "<text text-anchor=\"start\" x=\"70\" y=\"-15.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">RequiredVaccine</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Owner -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Owner</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"cell_phone           \r",
       "------------------------------\r",
       "full_name            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"52,-106 0,-106 0,-71 52,-71 52,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Owner</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Owner&#45;&gt;Pet -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Owner-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M26,-70.8C26,-59.95 26,-45.87 26,-35.05\"/>\n",
       "</g>\n",
       "<!-- Species -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Species</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"species              \r",
       "\">\n",
       "<polygon fill=\"#000000\" fill-opacity=\"0.125490\" stroke=\"none\" points=\"132,-106 80,-106 80,-71 132,-71 132,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"88\" y=\"-87\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"10.00\">Species</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;Pet -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Species-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M86.63,-70.8C73.5,-59.47 56.28,-44.62 43.55,-33.64\"/>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;RequiredVaccine -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Species-&gt;RequiredVaccine</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M108.42,-70.8C109.99,-59.95 112.03,-45.87 113.6,-35.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0f893b820>"
      ]
     },
     "execution_count": 96,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 97,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Shot(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Pet\n",
    "    -> RequiredVaccine\n",
    "    ---\n",
    "    shot_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 98,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"178pt\" height=\"185pt\" viewBox=\"0.00 0.00 178.00 185.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 181)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-181 174,-181 174,4 -4,4\"/>\n",
       "<!-- Pet -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Pet</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"→ Owner\r",
       "→ Species\r",
       "nickname             \r",
       "------------------------------\r",
       "birthdate            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"43.5,-106 8.5,-106 8.5,-71 43.5,-71 43.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"16.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Pet</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shot -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Shot</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"→ Pet\r",
       "→ RequiredVaccine\r",
       "------------------------------\r",
       "shot_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"91.5,-35 50.5,-35 50.5,0 91.5,0 91.5,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"71\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shot</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Pet&#45;&gt;Shot -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Pet-&gt;Shot</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M36.89,-70.8C43.97,-59.95 53.15,-45.87 60.21,-35.05\"/>\n",
       "</g>\n",
       "<!-- Species -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Species</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"species              \r",
       "\">\n",
       "<polygon fill=\"#000000\" fill-opacity=\"0.125490\" stroke=\"none\" points=\"132,-177 80,-177 80,-142 132,-142 132,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"88\" y=\"-158\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"10.00\">Species</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;Pet -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Species-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M86.63,-141.8C73.5,-130.47 56.28,-115.62 43.55,-104.64\"/>\n",
       "</g>\n",
       "<!-- RequiredVaccine -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>RequiredVaccine</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Species\r",
       "vaccine              \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"170,-106 62,-106 62,-71 170,-71 170,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"70\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">RequiredVaccine</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;RequiredVaccine -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Species-&gt;RequiredVaccine</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M108.42,-141.8C109.99,-130.95 112.03,-116.87 113.6,-106.05\"/>\n",
       "</g>\n",
       "<!-- RequiredVaccine&#45;&gt;Shot -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>RequiredVaccine-&gt;Shot</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M105.11,-70.8C98.03,-59.95 88.85,-45.87 81.79,-35.05\"/>\n",
       "</g>\n",
       "<!-- Owner -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Owner</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"cell_phone           \r",
       "------------------------------\r",
       "full_name            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"52,-177 0,-177 0,-142 52,-142 52,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Owner</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Owner&#45;&gt;Pet -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Owner-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M26,-141.8C26,-130.95 26,-116.87 26,-106.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb57bd30>"
      ]
     },
     "execution_count": 98,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 99,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    <b></b>\n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">cell_phone</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">species</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">nickname</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">vaccine</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">shot_date</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*cell_phone    *species    *nickname    *vaccine    shot_date    \n",
       "+------------+ +---------+ +----------+ +---------+ +-----------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 99,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Shot()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "```sql\n",
    "create table shot (\n",
    "    cell_phone char(10) NOT NULL,\n",
    "    nickname varchar(16) NOT NULL,\n",
    "    species varchar(20) NOT NULL,\n",
    "    vaccine varchar(10) NOT NULL,\n",
    "    PRIMARY KEY (cell_phone, nickname, species, vaccine),\n",
    "    FOREIGN KEY (cell_phone, nickname, species) REFERENCES                         pet(cell_phone, nickname, species),\n",
    "    FOREIGN KEY (species, vaccine) REFERENCES required_vaccine(species, vaccine)\n",
    ")\n",
    "```"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Homework homework\n",
    "\n",
    "Homework assignments, students, grades\n",
    "\n",
    "1. Homework is given with a due date.\n",
    "2. Students submit homework, we record the submit date\n",
    "3. Submitted homework gets a grade\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 100,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Assignment(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    assignment : int\n",
    "    ---\n",
    "    due_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 101,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema \n",
    "class Student(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    student_id : int\n",
    "    ---\n",
    "    student_name : varchar(30)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 102,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Submission(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Student\n",
    "    -> Assignment\n",
    "    ---\n",
    "    submit_date : date\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 103,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Grade(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Submission\n",
    "    ---\n",
    "    grade : char(1)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 104,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "image/svg+xml": [
       "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" width=\"353pt\" height=\"185pt\" viewBox=\"0.00 0.00 353.00 185.00\">\n",
       "<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 181)\">\n",
       "<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-181 349,-181 349,4 -4,4\"/>\n",
       "<!-- Assignment -->\n",
       "<g id=\"node1\" class=\"node\">\n",
       "<title>Assignment</title>\n",
       "<g id=\"a_node1\"><a xlink:title=\"assignment           \r",
       "------------------------------\r",
       "due_date             \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"80,-177 0,-177 0,-142 80,-142 80,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"8\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Assignment</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Submission -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Submission</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"→ Student\r",
       "→ Assignment\r",
       "------------------------------\r",
       "submit_date          \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"123,-106 43,-106 43,-71 123,-71 123,-106\"/>\n",
       "<text text-anchor=\"middle\" x=\"83\" y=\"-85.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Submission</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Assignment&#45;&gt;Submission -->\n",
       "<g id=\"edge1\" class=\"edge\">\n",
       "<title>Assignment-&gt;Submission</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M50.41,-141.8C57.17,-130.95 65.95,-116.87 72.69,-106.05\"/>\n",
       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"student_id           \r",
       "------------------------------\r",
       "student_name         \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"156,-177 98,-177 98,-142 156,-142 156,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"106\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Student</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Student&#45;&gt;Submission -->\n",
       "<g id=\"edge2\" class=\"edge\">\n",
       "<title>Student-&gt;Submission</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M116.35,-141.8C109.43,-130.95 100.45,-116.87 93.55,-106.05\"/>\n",
       "</g>\n",
       "<!-- Grade -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Grade</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Submission\r",
       "------------------------------\r",
       "grade                \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"108,-35 58,-35 58,0 108,0 108,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"83\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Grade</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Pet -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>Pet</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"→ Owner\r",
       "→ Species\r",
       "nickname             \r",
       "------------------------------\r",
       "birthdate            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"218.5,-106 183.5,-106 183.5,-71 218.5,-71 218.5,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"191.5\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Pet</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Shot -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Shot</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"→ Pet\r",
       "→ RequiredVaccine\r",
       "------------------------------\r",
       "shot_date            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"266.5,-35 225.5,-35 225.5,0 266.5,0 266.5,-35\"/>\n",
       "<text text-anchor=\"middle\" x=\"246\" y=\"-14.4\" font-family=\"arial\" font-size=\"12.00\" fill=\"darkgreen\">Shot</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Pet&#45;&gt;Shot -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>Pet-&gt;Shot</title>\n",
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       "</g>\n",
       "<!-- Species -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Species</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"species              \r",
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       "<text text-anchor=\"start\" x=\"263\" y=\"-158\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"10.00\">Species</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;Pet -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>Species-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M261.63,-141.8C248.5,-130.47 231.28,-115.62 218.55,-104.64\"/>\n",
       "</g>\n",
       "<!-- RequiredVaccine -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>RequiredVaccine</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Species\r",
       "vaccine              \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"345,-106 237,-106 237,-71 345,-71 345,-106\"/>\n",
       "<text text-anchor=\"start\" x=\"245\" y=\"-86.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">RequiredVaccine</text>\n",
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       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;RequiredVaccine -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Species-&gt;RequiredVaccine</title>\n",
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       "</g>\n",
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       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>RequiredVaccine-&gt;Shot</title>\n",
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       "</g>\n",
       "<!-- Submission&#45;&gt;Grade -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Submission-&gt;Grade</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"2\" stroke-opacity=\"0.250980\" d=\"M83,-70.8C83,-59.95 83,-45.87 83,-35.05\"/>\n",
       "</g>\n",
       "<!-- Owner -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Owner</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"cell_phone           \r",
       "------------------------------\r",
       "full_name            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"227,-177 175,-177 175,-142 227,-142 227,-177\"/>\n",
       "<text text-anchor=\"start\" x=\"183\" y=\"-157.4\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"12.00\" fill=\"darkgreen\">Owner</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Owner&#45;&gt;Pet -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Owner-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M201,-141.8C201,-130.95 201,-116.87 201,-106.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
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      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb568460>"
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     },
     "execution_count": 104,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Messaging App (Slack, Telegram, Signal)\n",
    "\n",
    "1. Users can create channels. Each channel belongs to one user.\n",
    "3. Channel names are globally unique\n",
    "2. A user can create a post in their channels only\n",
    "3. A user can be a guest in another person's channel.\n",
    "4. Guest can reply to posts\n",
    "\n",
    "\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 105,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class User(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    username : varchar(12)\n",
    "    ---\n",
    "    irl_name : varchar(30)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 106,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Channel(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    channel : varchar(12)\n",
    "    ---\n",
    "    -> User\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 107,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Guest(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Channel\n",
    "    -> User\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 108,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "<title>Assignment</title>\n",
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       "------------------------------\r",
       "due_date             \r",
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       "<title>Submission</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"→ Student\r",
       "→ Assignment\r",
       "------------------------------\r",
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       "<title>Assignment-&gt;Submission</title>\n",
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       "</g>\n",
       "<!-- Student -->\n",
       "<g id=\"node2\" class=\"node\">\n",
       "<title>Student</title>\n",
       "<g id=\"a_node2\"><a xlink:title=\"student_id           \r",
       "------------------------------\r",
       "student_name         \r",
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       "<!-- Student&#45;&gt;Submission -->\n",
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       "<title>Student-&gt;Submission</title>\n",
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       "</g>\n",
       "<!-- Grade -->\n",
       "<g id=\"node3\" class=\"node\">\n",
       "<title>Grade</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"→ Submission\r",
       "------------------------------\r",
       "grade                \r",
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       "</g>\n",
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       "<!-- User -->\n",
       "<g id=\"node4\" class=\"node\">\n",
       "<title>User</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"username             \r",
       "------------------------------\r",
       "irl_name             \r",
       "\">\n",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Guest -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>Guest</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"→ Channel\r",
       "→ User\r",
       "\">\n",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- User&#45;&gt;Guest -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>User-&gt;Guest</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M219.54,-141.62C217.07,-131.39 214.25,-118.04 213,-106 211.4,-90.53 211.54,-86.49 213,-71 214.13,-58.99 216.69,-45.64 218.94,-35.41\"/>\n",
       "</g>\n",
       "<!-- Channel -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Channel</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"channel              \r",
       "------------------------------\r",
       "→ User\r",
       "\">\n",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- User&#45;&gt;Channel -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>User-&gt;Channel</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-dasharray=\"5,2\" stroke-opacity=\"0.250980\" d=\"M231.02,-141.8C235.58,-130.95 241.5,-116.87 246.04,-106.05\"/>\n",
       "</g>\n",
       "<!-- Pet -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Pet</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Owner\r",
       "→ Species\r",
       "nickname             \r",
       "------------------------------\r",
       "birthdate            \r",
       "\">\n",
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       "</g>\n",
       "<!-- Shot -->\n",
       "<g id=\"node12\" class=\"node\">\n",
       "<title>Shot</title>\n",
       "<g id=\"a_node12\"><a xlink:title=\"→ Pet\r",
       "→ RequiredVaccine\r",
       "------------------------------\r",
       "shot_date            \r",
       "\">\n",
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       "<!-- Pet&#45;&gt;Shot -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Pet-&gt;Shot</title>\n",
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       "</g>\n",
       "<!-- Species -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Species</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"species              \r",
       "\">\n",
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       "<text text-anchor=\"start\" x=\"382\" y=\"-158\" font-family=\"arial\" text-decoration=\"underline\" font-size=\"10.00\">Species</text>\n",
       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;Pet -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Species-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M380.63,-141.8C367.5,-130.47 350.28,-115.62 337.55,-104.64\"/>\n",
       "</g>\n",
       "<!-- RequiredVaccine -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>RequiredVaccine</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Species\r",
       "vaccine              \r",
       "\">\n",
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       "</g>\n",
       "<!-- Channel&#45;&gt;Guest -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Channel-&gt;Guest</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M245.74,-70.8C241.02,-59.95 234.9,-45.87 230.2,-35.05\"/>\n",
       "</g>\n",
       "<!-- Submission&#45;&gt;Grade -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>Submission-&gt;Grade</title>\n",
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       "</g>\n",
       "<!-- Owner -->\n",
       "<g id=\"node11\" class=\"node\">\n",
       "<title>Owner</title>\n",
       "<g id=\"a_node11\"><a xlink:title=\"cell_phone           \r",
       "------------------------------\r",
       "full_name            \r",
       "\">\n",
       "<polygon fill=\"#00ff00\" fill-opacity=\"0.188235\" stroke=\"#00ff00\" stroke-opacity=\"0.188235\" points=\"346,-177 294,-177 294,-142 346,-142 346,-177\"/>\n",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Owner&#45;&gt;Pet -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Owner-&gt;Pet</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M320,-141.8C320,-130.95 320,-116.87 320,-106.05\"/>\n",
       "</g>\n",
       "</g>\n",
       "</svg>"
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      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa0cb47a560>"
      ]
     },
     "execution_count": 108,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 109,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Post(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Channel\n",
    "    post : int\n",
    "    ---\n",
    "    message : varchar(1024)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 110,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "\n",
       "    \n",
       "    <style type=\"text/css\">\n",
       "        .Relation{\n",
       "            border-collapse:collapse;\n",
       "        }\n",
       "        .Relation th{\n",
       "            background: #A0A0A0; color: #ffffff; padding:4px; border:#f0e0e0 1px solid;\n",
       "            font-weight: normal; font-family: monospace; font-size: 100%;\n",
       "        }\n",
       "        .Relation td{\n",
       "            padding:4px; border:#f0e0e0 1px solid; font-size:100%;\n",
       "        }\n",
       "        .Relation tr:nth-child(odd){\n",
       "            background: #ffffff;\n",
       "        }\n",
       "        .Relation tr:nth-child(even){\n",
       "            background: #f3f1ff;\n",
       "        }\n",
       "        /* Tooltip container */\n",
       "        .djtooltip {\n",
       "        }\n",
       "        /* Tooltip text */\n",
       "        .djtooltip .djtooltiptext {\n",
       "            visibility: hidden;\n",
       "            width: 120px;\n",
       "            background-color: black;\n",
       "            color: #fff;\n",
       "            text-align: center;\n",
       "            padding: 5px 0;\n",
       "            border-radius: 6px;\n",
       "            /* Position the tooltip text - see examples below! */\n",
       "            position: absolute;\n",
       "            z-index: 1;\n",
       "        }\n",
       "        #primary {\n",
       "            font-weight: bold;\n",
       "            color: black;\n",
       "        }\n",
       "        #nonprimary {\n",
       "            font-weight: normal;\n",
       "            color: white;\n",
       "        }\n",
       "\n",
       "        /* Show the tooltip text when you mouse over the tooltip container */\n",
       "        .djtooltip:hover .djtooltiptext {\n",
       "            visibility: visible;\n",
       "        }\n",
       "    </style>\n",
       "    \n",
       "    \n",
       "        <div style=\"max-height:1000px;max-width:1500px;overflow:auto;\">\n",
       "        <table border=\"1\" class=\"Relation\">\n",
       "            <thead> <tr style=\"text-align: right;\"> <th> <div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">channel</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"primary\">post</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">message</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div></th><th><div class=\"djtooltip\">\n",
       "                            <p id=\"nonprimary\">username</p>\n",
       "                            <span class=\"djtooltiptext\"></span>\n",
       "                        </div> </th> </tr> </thead>\n",
       "            <tbody> <tr>  </tr> </tbody>\n",
       "        </table>\n",
       "        \n",
       "        <p>Total: 0</p></div>\n",
       "        "
      ],
      "text/plain": [
       "*channel    *post    message     username    \n",
       "+---------+ +------+ +---------+ +----------+\n",
       "\n",
       " (Total: 0)"
      ]
     },
     "execution_count": 110,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Post * Channel"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 111,
   "metadata": {},
   "outputs": [],
   "source": [
    "@schema\n",
    "class Response(dj.Manual):\n",
    "    definition = \"\"\"\n",
    "    -> Post\n",
    "    -> Guest\n",
    "    ---\n",
    "    response : varchar(1024)\n",
    "    \"\"\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 112,
   "metadata": {},
   "outputs": [
    {
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       "<g id=\"node1\" class=\"node\">\n",
       "<title>Response</title>\n",
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       "→ Guest\r",
       "------------------------------\r",
       "response             \r",
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       "------------------------------\r",
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       "<g id=\"a_node12\"><a xlink:title=\"→ Student\r",
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       "<title>Student</title>\n",
       "<g id=\"a_node3\"><a xlink:title=\"student_id           \r",
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       "<g id=\"node4\" class=\"node\">\n",
       "<title>Grade</title>\n",
       "<g id=\"a_node4\"><a xlink:title=\"→ Submission\r",
       "------------------------------\r",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- User -->\n",
       "<g id=\"node5\" class=\"node\">\n",
       "<title>User</title>\n",
       "<g id=\"a_node5\"><a xlink:title=\"username             \r",
       "------------------------------\r",
       "irl_name             \r",
       "\">\n",
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       "</g>\n",
       "<!-- Guest -->\n",
       "<g id=\"node6\" class=\"node\">\n",
       "<title>Guest</title>\n",
       "<g id=\"a_node6\"><a xlink:title=\"→ Channel\r",
       "→ User\r",
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       "</g>\n",
       "<!-- User&#45;&gt;Guest -->\n",
       "<g id=\"edge3\" class=\"edge\">\n",
       "<title>User-&gt;Guest</title>\n",
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       "</g>\n",
       "<!-- Channel -->\n",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- User&#45;&gt;Channel -->\n",
       "<g id=\"edge4\" class=\"edge\">\n",
       "<title>User-&gt;Channel</title>\n",
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       "</g>\n",
       "<!-- Guest&#45;&gt;Response -->\n",
       "<g id=\"edge5\" class=\"edge\">\n",
       "<title>Guest-&gt;Response</title>\n",
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       "</g>\n",
       "<!-- Pet -->\n",
       "<g id=\"node7\" class=\"node\">\n",
       "<title>Pet</title>\n",
       "<g id=\"a_node7\"><a xlink:title=\"→ Owner\r",
       "→ Species\r",
       "nickname             \r",
       "------------------------------\r",
       "birthdate            \r",
       "\">\n",
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       "</g>\n",
       "<!-- Shot -->\n",
       "<g id=\"node14\" class=\"node\">\n",
       "<title>Shot</title>\n",
       "<g id=\"a_node14\"><a xlink:title=\"→ Pet\r",
       "→ RequiredVaccine\r",
       "------------------------------\r",
       "shot_date            \r",
       "\">\n",
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       "</a>\n",
       "</g>\n",
       "</g>\n",
       "<!-- Pet&#45;&gt;Shot -->\n",
       "<g id=\"edge6\" class=\"edge\">\n",
       "<title>Pet-&gt;Shot</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M303.89,-141.8C310.97,-130.95 320.15,-116.87 327.21,-106.05\"/>\n",
       "</g>\n",
       "<!-- Post -->\n",
       "<g id=\"node8\" class=\"node\">\n",
       "<title>Post</title>\n",
       "<g id=\"a_node8\"><a xlink:title=\"→ Channel\r",
       "post                 \r",
       "------------------------------\r",
       "message              \r",
       "\">\n",
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       "</g>\n",
       "<!-- Post&#45;&gt;Response -->\n",
       "<g id=\"edge7\" class=\"edge\">\n",
       "<title>Post-&gt;Response</title>\n",
       "<path fill=\"none\" stroke=\"#000000\" stroke-width=\"0.75\" stroke-opacity=\"0.250980\" d=\"M79.25,-70.8C74.22,-59.95 67.69,-45.87 62.67,-35.05\"/>\n",
       "</g>\n",
       "<!-- Species -->\n",
       "<g id=\"node9\" class=\"node\">\n",
       "<title>Species</title>\n",
       "<g id=\"a_node9\"><a xlink:title=\"species              \r",
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       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;Pet -->\n",
       "<g id=\"edge8\" class=\"edge\">\n",
       "<title>Species-&gt;Pet</title>\n",
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       "</g>\n",
       "<!-- RequiredVaccine -->\n",
       "<g id=\"node10\" class=\"node\">\n",
       "<title>RequiredVaccine</title>\n",
       "<g id=\"a_node10\"><a xlink:title=\"→ Species\r",
       "vaccine              \r",
       "\">\n",
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       "</g>\n",
       "</g>\n",
       "<!-- Species&#45;&gt;RequiredVaccine -->\n",
       "<g id=\"edge9\" class=\"edge\">\n",
       "<title>Species-&gt;RequiredVaccine</title>\n",
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       "</g>\n",
       "<!-- RequiredVaccine&#45;&gt;Shot -->\n",
       "<g id=\"edge10\" class=\"edge\">\n",
       "<title>RequiredVaccine-&gt;Shot</title>\n",
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       "</g>\n",
       "<!-- Channel&#45;&gt;Guest -->\n",
       "<g id=\"edge11\" class=\"edge\">\n",
       "<title>Channel-&gt;Guest</title>\n",
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       "</g>\n",
       "<!-- Channel&#45;&gt;Post -->\n",
       "<g id=\"edge12\" class=\"edge\">\n",
       "<title>Channel-&gt;Post</title>\n",
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       "</g>\n",
       "<!-- Submission&#45;&gt;Grade -->\n",
       "<g id=\"edge13\" class=\"edge\">\n",
       "<title>Submission-&gt;Grade</title>\n",
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       "</g>\n",
       "<!-- Owner -->\n",
       "<g id=\"node13\" class=\"node\">\n",
       "<title>Owner</title>\n",
       "<g id=\"a_node13\"><a xlink:title=\"cell_phone           \r",
       "------------------------------\r",
       "full_name            \r",
       "\">\n",
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       "</g>\n",
       "<!-- Owner&#45;&gt;Pet -->\n",
       "<g id=\"edge14\" class=\"edge\">\n",
       "<title>Owner-&gt;Pet</title>\n",
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       "</g>\n",
       "</g>\n",
       "</svg>"
      ],
      "text/plain": [
       "<datajoint.diagram.Diagram at 0x7fa129763d60>"
      ]
     },
     "execution_count": 112,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dj.Diagram(schema)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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