Samples

Sample databases

WideWorldImporters (Microsoft SQL Server)
WideWorldImportersDW (Microsoft SQL Server)
AdventureWorks (Microsoft SQL Server)
Sakila (sample MySQL database)
Pagila (sample PostgreSQL database)
Employees (sample MySQL database)
Dell DVD Store (PostgreSQL database)
World (MySQL)
Sample MongoDB database
World (PostgreSQL)
Tickit (sample Amazon Redshift database)

Sample documentations

Box Inc - Sample Enterprise Data Catalog
Sample data warehouse
Sample GDPR documentation
Projects database

Data dictionaries

Oracle EBS Data Dictionary