Sample database for exercise [closed]

You could try the classic MySQL world database.

The world.sql file is available for download here:

http://dev.mysql.com/doc/index-other.html

Just scroll down to Example Databases and you will find it.

This is an online database but you can try with the stackoverflow database: https://data.stackexchange.com/stackoverflow/query/new

You also can download its dumps here:

https://archive.org/download/stackexchange

Check out CodePlex for Microsoft SQL Server Community Projects & Samples

3rd party edit

On top of the link above you might look at

• microsoft sql server samples on github
• the msft db product samples on codeplex
• the new Wide World Importers sample database inludes OLTP and an OLAP for sql server 2016 and later