What are the best ways to learn SQL with a C# and Unity background?

You could build a small web API or game-related service, such as a leaderboard. Use C# with JDBC-like database access patterns or a direct SQL library, and manage schema changes with migrations. Writing the queries yourself instead of relying entirely on an ORM will make the concepts stick.

A useful C# project would be a small CRUD console app backed by SQLite. Let it create, read, update, and delete records, then add multiple related tables and joins. That gives you practice with both SQL and basic database design without adding the complexity of a server.

Don’t focus only on syntax. Spend some time learning how relational databases work, including tables, relationships, primary and foreign keys, normalization, and how SQL operates on result sets rather than one object at a time. A course such as Harvard’s CS50 SQL can provide a solid foundation.

The quickest route is probably a mix of short lessons and a real project. You can use an interactive SQL course for the fundamentals, then load some public data into a local database and write questions against it. An AI assistant can help explain errors or suggest exercises, but make sure you understand and rewrite the queries yourself.

SQLBolt and SQLZoo are good places to learn the basics interactively. You can cover SELECT statements, filtering, joins, grouping, and updates fairly quickly. Pair that with SQLite and a desktop database browser so you can experiment with real tables and queries locally.