MySQL for Analytics and Business Intelligence Part 1: Script to generate schema and tables

Please execute the following script to create database and related tables in mysql. 

SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;

SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;

SET @@sql_mode='no_engine_substitution';

SET global time_zone = '-5:00'; 

SET SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';

  

DROP SCHEMA IF EXISTS mavenfuzzyfactory; -- this will cause an errror if DB doesn't exist. Dont worry

CREATE SCHEMA mavenfuzzyfactory;

USE mavenfuzzyfactory;

--

-- Creating an empty shell for the table 'website_sessions'. We will populate it later. 

--

CREATE TABLE website_sessions (

  website_session_id BIGINT,

  created_at TIMESTAMP,

  user_id BIGINT,

  is_repeat_session SMALLINT, 

  utm_source VARCHAR(12), 

  utm_campaign VARCHAR(20),

  utm_content VARCHAR(15), 

  device_type VARCHAR(15), 

  http_referer VARCHAR(30),

  PRIMARY KEY (website_session_id),

  KEY website_sessions_user_id (user_id)

)ENGINE=InnoDB DEFAULT CHARSET=UTF8MB4;

--

-- Creating an empty shell for the table 'website_pageviews'. We will populate it later. 

--

CREATE TABLE website_pageviews (

  website_pageview_id BIGINT,

  created_at TIMESTAMP,

  website_session_id BIGINT,

  pageview_url VARCHAR(50),

  PRIMARY KEY (website_pageview_id),

  KEY website_pageviews_website_session_id (website_session_id)

)ENGINE=InnoDB DEFAULT CHARSET=UTF8MB4;

--

-- Creating an empty shell for the table 'products'. We will populate it later. 

--

CREATE TABLE products (

  product_id BIGINT,

  created_at TIMESTAMP,

  product_name VARCHAR(50),

  PRIMARY KEY (product_id)

)ENGINE=InnoDB DEFAULT CHARSET=UTF8MB4;

--

-- Creating an empty shell for the table 'orders'. We will populate it later. 

--

CREATE TABLE orders (

  order_id BIGINT,

  created_at TIMESTAMP,

  website_session_id BIGINT,

  user_id BIGINT,

  primary_product_id SMALLINT,

  items_purchased SMALLINT,

  price_usd DECIMAL(6,2),

  cogs_usd DECIMAL(6,2),

  PRIMARY KEY (order_id),

  KEY orders_website_session_id (website_session_id)

)ENGINE=InnoDB DEFAULT CHARSET=UTF8MB4;

--

-- Creating an empty shell for the table 'order_items'. We will populate it later. 

--

CREATE TABLE order_items (

  order_item_id BIGINT,

  created_at TIMESTAMP,

  order_id BIGINT,

  product_id SMALLINT,

  is_primary_item SMALLINT,

  price_usd DECIMAL(6,2),

  cogs_usd DECIMAL(6,2),

  PRIMARY KEY (order_item_id),

  KEY order_items_order_id (order_id)

)ENGINE=InnoDB DEFAULT CHARSET=UTF8MB4;

--

-- Creating an empty shell for the table 'order_item_refunds'. We will populate it later. 

--

CREATE TABLE order_item_refunds (

  order_item_refund_id BIGINT,

  created_at TIMESTAMP,

  order_item_id BIGINT,

  order_id BIGINT,

  refund_amount_usd DECIMAL(6,2),

  PRIMARY KEY (order_item_refund_id),

  KEY order_items_order_id (order_id),

  KEY order_items_order_item_id (order_item_id)

)ENGINE=InnoDB DEFAULT CHARSET=UTF8MB4;