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'''<nowiki>MySQL</nowiki>''' is a very fast, multi-threaded, multi-user and robust [[SQL]] (Structured Query Language) [[relational database]] server. <nowiki>MySQL</nowiki> is [[free software]]: it is licensed under the [[GNU General Public License]]. It was written and is maintained by the Swedish company <nowiki>MySQL</nowiki> AB, which sells support and service contracts as well as commercially licenced copies of <nowiki>MySQL</nowiki> and employs people all over the world who communicate over the internet.
<nowiki>MySQL</nowiki> originally lacked support for [[transaction|transactions]], however this feature is now available. The full [[ANSI SQL]] standard is extended in some areas and not implemented in others; probably the most often requested features which are not yet implemented are:
* "Sub-SELECTs" or "nested SELECTs".
* multibyte character encoding or [[Unicode]]/[[UTF-8]]
<nowiki>MySQL</nowiki> is open source and works on many different platforms including [[AIX operating system|AIX]], [[BSDi]], [[DEC Unix]], [[FreeBSD]], [[HP-UX]], [[Linux]], [[Mac OS X]], [[NetBSD]], [[OpenBSD]], [[OS/2]] Warp, [[SGI]] [[Irix]], [[Solaris Operating Environment|Solaris]], [[SunOS]], SCO <nowiki>OpenServer</nowiki>, SCO <nowiki>UnixWare</nowiki>, [[Tru64 Unix]], [[Microsoft Windows|Windows]] 95, 98, NT and 2000.
<nowiki>MySQL</nowiki> databases can be accessed using the [[programming language|programming languages]] [[C programming language|C]], [[C Plus Plus|C++]], [[Eiffel programming language|Eiffel]], [[Java programming language|Java]], [[Perl]], [[PHP]], [[Python]], and [[Tcl]]; for each of these, a specific [[API]] is available. An [[ODBC]] interface called <nowiki>MyODBC</nowiki> is also available.
Despite the official pronunciation of SQL being "sequel", the common pronunciation of MySQL is "My S-Q-L", and not "My-Sequel".
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In August 2001, a test version of the [[Wikipedia]] software using [[PHP programming language|PHP]] and <nowiki>MySQL</nowiki> appeared; in January 2002 it was adopted as the new software running Wikipedia. See the [[wikipedia:PHP script|Wikipedia PHP script]] page.
See also: [[PostgreSQL]], [[Berkeley DB]]
External links: <nowiki>MySQL</nowiki> web site at http://www.mysql.com
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