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 SQL Fundamentals - http://databases.about.com/od/sql/a/sqlfundamentals.htm Introduction to SQL |
 An Introduction to Database Normalization - http://dev.mysql.com/tech-resources/articles/intro-to-normalization.html 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. |
 Steve Litt's SQL Troubleshooting Page - http://www.troubleshooters.com/codecorn/lsql.htm Tips on how to troubleshoot SQL queries. |
 SQL for Web Nerds - http://philip.greenspun.com/sql/ A nicely structured manuscript on SQL by Philip Greenspun, based on the Oracle database. Queries, transactions, triggers, and RDBMS concepts are covered. |
 Fluffycat SQL - http://fluffycat.com/sql/ Examples of how to use SQL commands |
 SQL Tutorial - http://www.firstsql.com/tutor.htm Complete SQL Tutorial using SQL92. |
 Intro To Structured Query Language (SQL) - http://www.thundersoftware.com/churchdb/sqltutorial/sql_tutorial.html A basic introduction to writing queries so that beginners can begin to extract data from an existing relational database. |
 SQLCourse - http://www.sqlcourse.com/ Interactive/On-line SQL Tutorial with SQL Interpreter and live practice database. |
 An Introduction to Structured Query Language (SQL) - http://www.techbookreport.com/sql-tut1.html By Pan Pantziarka. From creating a simple database to select queries, joins, updates, inserts. |
 SQL Cheat Sheet: Query By Example - http://www.paragoncorporation.com/ArticleDetail.aspx?ArticleID=27 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. |
 Summarizing data with SQL (Structured Query Language) - http://www.paragoncorporation.com/ArticleDetail.aspx?ArticleID=6 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. |
 A Gentle Introduction to SQL - http://sqlzoo.net/ An interactive tutorial. Allows access to tables using any of Oracle, SQL Server, MySQL, Access or PostgreSQL engines. |
 SQL Tutorial - http://www.1keydata.com/sql/sql.html This site aims to teach beginners the building blocks of SQL. |
 SQLcourse2 - http://www.sqlcourse2.com/ Online SQL tutorial featuring a live interpreter to test SQL commands. |
 SQL Tutorial - http://www.sql-tutorial.net SQL tutorial featuring a guide to SQL language concepts and SQL commands. |
 Introduction to Structured Query Language - http://riki-lb1.vet.ohio-state.edu/mqlin/computec/tutorials/SQLTutorial.htm A good introduction to SQL selects, joins and grouping. |
 SQL Tutorial by Josh Grant - http://comclub.dyndns.org/tutorials/jrgrant/SQLTutorial.txt Brief introduction to basic SQL commands |
 Database and SQL eLearning - http://db.grussell.org/ 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. |
 SQL School - http://www.w3schools.com/sql/ Full set of SQL language tutorials featuring in depth coverage on each SQL command. |
 Wikipedia: SQL - http://en.wikipedia.org/wiki/SQL History and overview of the language. |
 Kihlman's SQL (Graphic SQL tutorial) - http://sql.kihlman.eu/ This program helps you learn SQL, Structured Query Language. You can use the test questions or make your own SQL statements. [Shareware] |
 Thomas Beck's Home Page - http://www.thomas.beck.name/ Physical Data Model Patterns. |
 SQL exercises - http://www.sql-ex.ru 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 In Simple English - http://www.codecoffee.com/articles/sql1.html SQL presented as a questions and answers session, with questions that novices would like to ask. |