In 1988, Microsoft released its first version of SQL Server. It was developed jointly by Microsoft and Sybase for the OS/2 platform.
• 1993 – SQL Server 4.21 for Windows NT
• 1995 – SQL Server 6.0, codenamed SQL95
• 1996 – SQL Server 6.5, codenamed Hydra
• 1999 – SQL Server 7.0, codenamed Sphinx
• 1999 – SQL Server 7.0 OLAP, codenamed Plato
• 2000 – SQL Server 2000 32-bit, codenamed Shiloh (version 8.0)
• 2003 – SQL Server 2000 64-bit, codenamed Liberty
• 2005 – SQL Server 2005, codenamed Yukon (version 9.0)
• 2008 – SQL Server 2008, codenamed Katmai (version 10.0)
• 2010 – SQL Server 2008 R2, Codenamed Kilimanjaro (aka KJ)
• Next – SQL Server 2011, Codenamed Denali
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