Microsoft Sql Server

Microsoft Sql Server is a enterprise database software provide by Microsoft.
SQL Server was developed by Sybase before 3.0 . From OS/2 database project, Microsoft, Sybase and DBase 3 vendors cooperated. After Microsoft gave up OS/2 and provide Windows NT, Microsoft acquired the developing rights and provices Microsoft version of SQL Server. Sybase rename the product to ASE.

Reference:
http://en.wikipedia.org/wiki/Microsoft_SQL_Server#History

See Also:
Create SSAS service