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