add course folder

db-course/000-ConnectSQL.ipynb

@@ -0,0 +1,254 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pymysql\n",
+    "pymysql.install_as_MySQLdb()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%load_ext sql\n",
+    "%config SqlMagic.autocommit=True"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "connection_string = \"mysql://root:[email protected]\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%sql $connection_string"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " * mysql://root:***@127.0.0.1\n",
+      "1 rows affected.\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "[]"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "%%sql\n",
+    "\n",
+    "CREATE SCHEMA IF NOT EXISTS university"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " * mysql://root:***@127.0.0.1\n",
+      "0 rows affected.\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "[]"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "%%sql \n",
+    "\n",
+    "USE university "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " * mysql://root:***@127.0.0.1\n",
+      "0 rows affected.\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "[]"
+      ]
+     },
+     "execution_count": 10,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "%%sql\n",
+    "\n",
+    "CREATE TABLE person (\n",
+    "    person_id  int  NOT NULL,\n",
+    "    first_name varchar(30) NOT NULL,\n",
+    "    last_name varchar(30) NOT NULL,\n",
+    "    PRIMARY KEY(person_id)\n",
+    ")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " * mysql://root:***@127.0.0.1\n",
+      "2 rows affected.\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "[]"
+      ]
+     },
+     "execution_count": 17,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "%%sql\n",
+    "\n",
+    "INSERT INTO person VALUES (2, \"Jane\", \"Doe\"), (3, \"Alice\", \"Cooper\") "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      " * mysql://root:***@127.0.0.1\n",
+      "3 rows affected.\n"
+     ]
+    },
+    {
+     "data": {
+      "text/html": [
+       "<table>\n",
+       "    <thead>\n",
+       "        <tr>\n",
+       "            <th>person_id</th>\n",
+       "            <th>first_name</th>\n",
+       "            <th>last_name</th>\n",
+       "        </tr>\n",
+       "    </thead>\n",
+       "    <tbody>\n",
+       "        <tr>\n",
+       "            <td>1</td>\n",
+       "            <td>Alice</td>\n",
+       "            <td>Cooper</td>\n",
+       "        </tr>\n",
+       "        <tr>\n",
+       "            <td>2</td>\n",
+       "            <td>Jane</td>\n",
+       "            <td>Doe</td>\n",
+       "        </tr>\n",
+       "        <tr>\n",
+       "            <td>3</td>\n",
+       "            <td>Alice</td>\n",
+       "            <td>Cooper</td>\n",
+       "        </tr>\n",
+       "    </tbody>\n",
+       "</table>"
+      ],
+      "text/plain": [
+       "[(1, 'Alice', 'Cooper'), (2, 'Jane', 'Doe'), (3, 'Alice', 'Cooper')]"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "%%sql\n",
+    "\n",
+    "SELECT * FROM person"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.17"
+  },
+  "orig_nbformat": 4
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}