Web Directory

» A Gentle Introduction to SQL
   An interactive tutorial. Allows access to tables using any of Oracle, SQL Server, MySQL, Access or PostgreSQL engines.
   http://sqlzoo.net/

» 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.
   http://dev.mysql.com/tech-resources/articles/intro-to-normalization.html

» An Introduction to Structured Query Language (SQL)
   By Pan Pantziarka. From creating a simple database to select queries, joins, updates, inserts.
   http://www.techbookreport.com/sql-tut1.html

» 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.
   http://db.grussell.org/

» Fluffycat SQL
   Examples of how to use SQL commands
   http://fluffycat.com/sql/

» 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.
   http://www.thundersoftware.com/churchdb/sqltutorial/sql_tutorial.html

» 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]
   http://sql.kihlman.eu/

» 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.
   http://www.paragoncorporation.com/ArticleDetail.aspx?ArticleID=27

» SQL Fundamentals
   Introduction to SQL
   http://databases.about.com/od/sql/a/sqlfundamentals.htm

» SQL In Simple English
   SQL presented as a questions and answers session, with questions that novices would like to ask.
   http://www.codecoffee.com/articles/sql1.html

» SQL School
   Full set of SQL language tutorials featuring in depth coverage on each SQL command.
   http://www.w3schools.com/sql/

» SQL Tutorial
   SQL tutorial featuring a guide to SQL language concepts and SQL commands.
   http://www.sql-tutorial.net

» SQL Tutorial by Josh Grant
   Brief introduction to basic SQL commands
   http://comclub.dyndns.org/tutorials/jrgrant/SQLTutorial.txt

» 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.
   http://www.sql-ex.ru

» 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.
   http://philip.greenspun.com/sql/

» SQLCourse
   Interactive/On-line SQL Tutorial with SQL Interpreter and live practice database.
   http://www.sqlcourse.com/

» SQLcourse2
   Online SQL tutorial featuring a live interpreter to test SQL commands.
   http://www.sqlcourse2.com/

» Steve Litt's SQL Troubleshooting Page
   Tips on how to troubleshoot SQL queries.
   http://www.troubleshooters.com/codecorn/lsql.htm

» 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.
   http://www.paragoncorporation.com/ArticleDetail.aspx?ArticleID=6

» Thomas Beck's Home Page
   Physical Data Model Patterns.
   http://www.thomas.beck.name/

» Wikipedia: SQL
   History and overview of the language.
   http://en.wikipedia.org/wiki/SQL