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SQL is short for Structured Query Language and is a widely used database language, providing means of data manipulation (store, retrieve, update, delete) and database creation.

If you need a quick SQL reference, make sure you download or PDF SQL Cheat Sheet.

Almost all modern Relational Database Management Systems like MS SQL Server, Microsoft Access, MSDE, Oracle, DB2, Sybase, MySQL, Postgres and Informix use SQL as standard database language. Now a word of warning here, although all those RDBMS use SQL, they use different SQL dialects. For example MS SQL Server specific version of the SQL is called T-SQL, Oracle version of SQL is called PL/SQL, MS Access version of SQL is called JET SQL, etc.

Our SQL tutorial will teach you how to use commonly used SQL commands and you will be able to apply most of the knowledge gathered from this SQL tutorial to any of the databases above.