Azzam basic SQL

solutions.ipynb

@@ -0,0 +1,240 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT client_id\n",
+    "FROM client\n",
+    "WHERE district_id = 1\n",
+    "LIMIT 5;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT client_id\n",
+    "FROM client\n",
+    "WHERE district_id = 72\n",
+    "ORDER BY client_id DESC\n",
+    "LIMIT 1;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT amount\n",
+    "FROM loan\n",
+    "ORDER BY amount ASC\n",
+    "LIMIT 3;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT DISTINCT status\n",
+    "FROM loan\n",
+    "ORDER BY status ASC;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT loan_id\n",
+    "FROM loan\n",
+    "ORDER BY payments DESC\n",
+    "LIMIT 1;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT account_id, amount\n",
+    "FROM loan\n",
+    "ORDER BY account_id ASC\n",
+    "LIMIT 5;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT account_id, amount\n",
+    "FROM loan\n",
+    "WHERE duration = 60\n",
+    "AND amount = (\n",
+    "    SELECT MIN(amount)\n",
+    "    FROM loan\n",
+    "    WHERE duration = 60\n",
+    ");"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT DISTINCT k_symbol\n",
+    "FROM `order`\n",
+    "ORDER BY k_symbol ASC;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT order_id\n",
+    "FROM `order`\n",
+    "WHERE account_id = 34;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT account_id\n",
+    "FROM `order`\n",
+    "WHERE order_id BETWEEN 29540 AND 29560;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT amount\n",
+    "FROM `order`\n",
+    "WHERE account_to = 30067122;\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT trans_id, date, type, amount\n",
+    "FROM `trans`\n",
+    "WHERE account_id = 793\n",
+    "ORDER BY date DESC\n",
+    "LIMIT 10;\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT district_id, COUNT(*) AS client_count\n",
+    "FROM `client`\n",
+    "WHERE district_id < 10\n",
+    "GROUP BY district_id\n",
+    "ORDER BY district_id ASC;\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT type, COUNT(*) AS card_count\n",
+    "FROM `card`\n",
+    "GROUP BY type\n",
+    "ORDER BY card_count DESC;\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT account_id, SUM(amount) AS total_loan_amount\n",
+    "FROM `loan`\n",
+    "GROUP BY account_id\n",
+    "ORDER BY total_loan_amount DESC\n",
+    "LIMIT 10;\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT date, COUNT(*) AS loan_count\n",
+    "FROM `loan`\n",
+    "WHERE date < 930907\n",
+    "GROUP BY date\n",
+    "ORDER BY date DESC;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT date, duration, COUNT(*) AS loan_count\n",
+    "FROM `loan`\n",
+    "WHERE date BETWEEN 19971201 AND 19971231\n",
+    "GROUP BY date, duration\n",
+    "ORDER BY date ASC, duration ASC;\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SELECT account_id, type, SUM(amount) AS total_amount\n",
+    "FROM `trans`\n",
+    "WHERE account_id = 396\n",
+    "GROUP BY type\n",
+    "ORDER BY type ASC;"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}