SQL Introduction

What is SQL?

SQL (Structured Query Language) queries, inserts, updates, and manages relational data.

Why Learn SQL?

SQL is widely used in industry and education. This tutorial follows a practical, example-driven approach so you can read a concept and try it immediately.

Learning by Examples

Our examples are concise and focused. Edit them in the Try it Yourself editor and observe the result.

SELECT 'Hello from Sturdee' AS message;