SQL Practice Questions

Practicing your SQL skills helps you get better with SQL and understand where to focus your learning.

In this guide, you'll see 40 different practice questions:

• a mix of basic and intermediate SELECT statements
• all on a single sample database
• includes links to GitHub setup scripts for Oracle, SQL Server, MySQL, and Postgres
• answers included for Oracle, SQL Server, MySQL, and Postgres

Each question includes the problem to solve, an expected output, and an SQL query that gives you the answer. The answers are at the end of the guide so you can avoid the spoilers!

The practice questions and database will work on Oracle, SQL Server, MySQL, and Postgres.