Learn Yourself SQL

SQL Tutorials

Stored Procedures Tutorial
Nice and simple single page tutorial for those who want to learn how to write and use stored procedures.

SQL Strings
Database terms glossary and online reference for various ADO and ADO.NET SQL database connection strings for MS SQL Server, MS Access, MySQL, Oracle.

SQL Tutorial - Learn SQL
SQL tutorial featuring comprehensive guide to SQL language concepts and SQL commands.

SQL.ORG - Online Resources
Site has links to many different beginning SQL tutorials and assorted resources.

Sql Learning Resource
Page has numerous excellent tutorials, quizes, and an exam.

Beginner SQL Tutorial
Just like it says, an FAQ with great stuff for beginner's and intermediate SQL developers alike. Free single page lesson which branches into more complex SQL lessons such as subqueries and
unions.

A Gentle Introduction to SQL
A site offering a tutorial and beginner information on SQL.

SQL for Web Nerds
This is another interesting SQL tutorial. You will definitely want to browse through this tutorial just to see the pics if nothing else!

Structured Query Language Tutorial
Articles and resources on SQL development. All about NULL values, self joins, SQL aggregate functions, optimizations, and CUBE and ROLLUP explained. As always an excellent free SQL how-to resource.

Oracle: SQL*Plus Tutorial
Another smaller free SQL tutorial and reference.

CHL - SQL Tutorial
A complete self paced tutorial which takes you through all the important elements of SQL including sub-queries and correlation.

SQL Tutorial and Interpreter w/ Live Practice Database
This unique introductory SQL tutorial not only provides easy-to-understand SQL instructions, but it allows you to practice what you learn using the on-line SQL interpreter.