SQL is an ANSI (American National Standards Institute) standard for accessing database systems. SQL statements are used to retrieve and update data in a database. This interactive SQL tutorial not only provides easy-to-understand basic SQL instructions, but it allows you to practice what you learn using the on-line SQL interpreter. You will receive immediate results after submitting your SQL commands.
If you're already familar with the basics of SQL, you can still use this as a refresher, and practice some SQL statements.

1. SQL (Structured Query Language) introduction
2. Basics of the SELECT statement
3. Conditional selection
4. In & Between
5. Using LIKE
6. Performing a join
7. DISTINCT and Eliminating Duplicates
8. Aliases & Subqueries
9. Miscellaneous SQL statements
10. Adding deleting updating data
11. GROUP BY & HAVING
12. More subqueries
13. UNION and outer joins