A relational DBMS from Microsoft that is a major component of the Windows Server System. It is Microsoft's high-end client/server database and is closely integrated with Microsoft Visual Studio and the Microsoft Office System. Numerous editions are available, including those for Enterprise, Developer, Workgroup and 64-bit platforms.

Common Code Roots

SQL Server was originally developed by Sybase and also sold by Microsoft for OS/2 and Windows NT. In 1992, Microsoft began development of its own version, but acknowledged Sybase as copyright holder of origin until 1994. Future revisions diverged in 1995 when Sybase renamed its product Adaptive Server Enterprise as a means of differentiation (see ASE).

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