Schema

Ama2on Database Schema

users

column name	data type	details
id	integer	not null, primary key
first_name	string	not null
last_name	string	not null
email	string	not null, indexed, unique
password_digest	string	not null
session_token	string	not null, indexed, unique
created_at	datetime	not null
updated_at	datetime	not null

• index on email, unique: true
• index on session_token, unique: true

products

column name	data type	details
id	integer	not null, primary key
product_name	string	not null, indexed
price	float	not null
seller_id	integer	not null, indexed, foreign key
product_description	text	not null
created_at	datetime	not null
updated_at	datetime	not null

• index on product_name
• index on seller_id
• seller_id references users

cart_items

column name	data type	details
id	integer	not null, primary key
user_id	integer	not null, indexed, foreign key
product_id	integer	not null, indexed, foreign key
quantity	integer	not null
created_at	datetime	not null
updated_at	datetime	not null

• user_id references users
• index on user_id
• index on product_id

reviews

column name	data type	details
id	integer	not null, primary key
reviewer_id	integer	not null, indexed, foreign key
product_id	integer	not null, indexed, foreign key
rating	integer	not null
title	string	not null
body	text	not null
created_at	datetime	not null
updated_at	datetime	not null

• reviewer_id references users
• index on reviewer_id
• index on product_id