designing for scalability - partitioning data

Author: ptyadana

Advanced SQL for Application Development/04.Designing for Scalability - Partitioned Table.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Challenge\n",
+    "\n",
+    "Define a a sales history table partitioned by month of sale:\n",
+    "\n",
+    "- Months are numbers from 1 to 12\n",
+    "- Attributes should include:\n",
+    "    - product ID\n",
+    "    - product name\n",
+    "    - product type\n",
+    "    - total units sold\n",
+    "    - month of sale\n",
+    "- Create a primary key using month of sale and product ID"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Solution"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "**Create table with partitioned by range**\n",
+    "\n",
+    "`CREATE TABLE sales_history(\n",
+    "    product_id INT NOT NULL,\n",
+    "\tproduct_name CHARACTER VARYING(50) NOT NULL,\n",
+    "\tproduct_type CHARACTER VARYING(50) NOT NULL,\n",
+    "\ttotal_units_sold INT NOT NULL,\n",
+    "\tmonth_of_sale INT NOT NULL,\n",
+    "\tPRIMARY KEY(month_of_sale, product_id)\n",
+    ") PARTITION BY RANGE(month_of_sale);`\n",
+    "\n",
+    "\n",
+    "**create partition nodes tables**\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_1 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (1) TO (2);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_2 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (2) TO (3);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_3 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (3) TO (4);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_4 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (4) TO (5);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_5 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (5) TO (6);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_6 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (6) TO (7);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_7 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (7) TO (8);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_8 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (8) TO (9);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_9 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (9) TO (10);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_10 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (10) TO (11);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_11 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (11) TO (12);`\n",
+    "\n",
+    "`CREATE TABLE sales_history_month_12 PARTITION OF sales_history\n",
+    "FOR VALUES FROM (12) TO (13);`\n"
+   ]
+  },
+  {
+   "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": "3.8.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}

Advanced SQL for Application Development/04.Partitioned Tables.sql

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+/*
+Define a a sales history table partitioned by month of sale:
+
+- Months are numbers from 1 to 12
+- Attributes should include:
+    - product ID
+    - product name
+    - product type
+    - total units sold
+    - month of sale
+- Create a primary key using month of sale and product ID
+*/
+
+-- Create table with partitioned by range
+CREATE TABLE sales_history(
+    product_id INT NOT NULL,
+	product_name CHARACTER VARYING(50) NOT NULL,
+	product_type CHARACTER VARYING(50) NOT NULL,
+	total_units_sold INT NOT NULL,
+	month_of_sale INT NOT NULL,
+	PRIMARY KEY(month_of_sale, product_id)
+) PARTITION BY RANGE(month_of_sale);
+
+
+-- create partition nodes tables
+CREATE TABLE sales_history_month_1 PARTITION OF sales_history
+FOR VALUES FROM (1) TO (2);
+
+CREATE TABLE sales_history_month_2 PARTITION OF sales_history
+FOR VALUES FROM (2) TO (3);
+
+CREATE TABLE sales_history_month_3 PARTITION OF sales_history
+FOR VALUES FROM (3) TO (4);
+
+CREATE TABLE sales_history_month_4 PARTITION OF sales_history
+FOR VALUES FROM (4) TO (5);
+
+CREATE TABLE sales_history_month_5 PARTITION OF sales_history
+FOR VALUES FROM (5) TO (6);
+
+CREATE TABLE sales_history_month_6 PARTITION OF sales_history
+FOR VALUES FROM (6) TO (7);
+
+CREATE TABLE sales_history_month_7 PARTITION OF sales_history
+FOR VALUES FROM (7) TO (8);
+
+CREATE TABLE sales_history_month_8 PARTITION OF sales_history
+FOR VALUES FROM (8) TO (9);
+
+CREATE TABLE sales_history_month_9 PARTITION OF sales_history
+FOR VALUES FROM (9) TO (10);
+
+CREATE TABLE sales_history_month_10 PARTITION OF sales_history
+FOR VALUES FROM (10) TO (11);
+
+CREATE TABLE sales_history_month_11 PARTITION OF sales_history
+FOR VALUES FROM (11) TO (12);
+
+CREATE TABLE sales_history_month_12 PARTITION OF sales_history
+FOR VALUES FROM (12) TO (13);