See also:

• Computers: Programming: FAQs, Help, and Tutorials  (35)

• Introduction to Structured Query Language   - A good introduction to SQL selects, joins and grouping.

• Database and SQL eLearning - Database theory and an online tutorial interface to an Oracle database system, allowing a user to learn SQL interactively. The site automatically checks and marks SQL and gives instant feedback.
• Fluffycat SQL - Examples of how to use SQL commands
• A Gentle Introduction to SQL - An interactive tutorial. Allows access to tables using any of Oracle, SQL Server, MySQL, Access or PostgreSQL engines.
• Intro To Structured Query Language (SQL) - A basic introduction to writing queries so that beginners can begin to extract data from an existing relational database.
• An Introduction to Database Normalization - Article by Mike Hillyer. Normalizing data is the most effective way to decrease storage requirements and increase data integrity. In this tutorial we cover the basics of data normalization.
• An Introduction to Structured Query Language (SQL) - By Pan Pantziarka. From creating a simple database to select queries, joins, updates, inserts.
• Kihlman's SQL (Graphic SQL tutorial) - This program helps you learn SQL, Structured Query Language. You can use the test questions or make your own SQL statements. [Shareware]
• SQL Cheat Sheet: Query By Example - Provides ANSI-SQL solutions to common database query/update tasks. These apply to such relational databases as PostGreSQL, MySQL, Microsoft SQL Server, Oracle, Microsoft Access, SQLite.
• SQL exercises - Help everyone to gain or improve skills in building SQL Data Manipulation Language statements. A rating system is supported for SELECT exercises and certification. SQL handbook. English and Russian versions.
• SQL for Web Nerds - A nicely structured manuscript on SQL by Philip Greenspun, based on the Oracle database. Queries, transactions, triggers, and RDBMS concepts are covered.
• SQL Fundamentals - Introduction to SQL
• SQL In Simple English - SQL presented as a questions and answers session, with questions that novices would like to ask.
• SQL School - Full set of SQL language tutorials featuring in depth coverage on each SQL command.
• SQL Tutorial - Complete SQL Tutorial using SQL92.
• SQL Tutorial - This site aims to teach beginners the building blocks of SQL.
• SQL Tutorial - SQL tutorial featuring a guide to SQL language concepts and SQL commands.
• SQL Tutorial by Josh Grant - Brief introduction to basic SQL commands
• SQLCourse - Interactive/On-line SQL Tutorial with SQL Interpreter and live practice database.
• SQLcourse2 - Online SQL tutorial featuring a live interpreter to test SQL commands.
• Steve Litt's SQL Troubleshooting Page - Tips on how to troubleshoot SQL queries.
• Summarizing data with SQL (Structured Query Language) - This article provides a brief SQL How-to on how to summarize data. Most of the examples we provide will be based on the ANSI-SQL 92 standard. Some examples will show features specific to SQL Server 7.
• Thomas Beck's Home Page - Physical Data Model Patterns.
• Wikipedia: SQL - History and overview of the language.