SQL Tutorial

Learn SQL

SQL is a standard language for storing, manipulating and retrieving data in databases.

The SQL tutorial will teach you how to use SQL in MySQL, SQL Server, MS Access, Oracle, PostgreSQL, and more.

Examples in Each Chapter

With the online SQL editor, you can edit the SQL statements, and click on a button to view the result.

Example

SELECT * FROM Customers;

Run the code to see how it works.

SQL Exercises

Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

SQL Examples

Learn by examples! This tutorial supplements all explanations with clarifying examples.

SQL References

You can find a complete reference for keywords and functions:

SQL Keyword Reference MySQL Functions SQL Server Functions MS Access Functions SQL Quick Reference

SQL Data Types

Data types and ranges for Microsoft Access, MySQL and SQL Server.

SQL Data Types