Structured Query Language (SQL) is a widely-used programming language for working with relational databases. The name of the language is generally pronounced as the three letters of its abbreviation [ˈɛs kjuː ˈɛl] or, in some people's usage, as [ˈsiːkwəl].
This Wikibook provides a short description of SQL, its origins, basic concepts and components, and a lot of examples. The book follows the specifications of the SQL:2011 standard, which is developed by a common committee of ISO and IEC. Their publications are not freely available, but can be ordered online.  Or you may want to refer to a working draft of SQL:2008, which you can download from Whitemarsh Information Systems Corporation.
- About the Book
- Database Management Systems (DBMS)
- Relational DBMS (rDBMS)
- SQL: A Language for Working with rDBMS
- SQL: The Standard ISO IEC 9075 and various Implementations
- Language Elements
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