Microsoft SQL Server is a relational database management system (RDBMS) produced by Microsoft. Its primary query languages are MS-SQL and T-SQL.SQL Server Release History Version Year Release Name Codename 1.0 (OS/2) 1989 SQL Server 1.0 - 4.21 (WinNT) 1993 SQL Server 4.21 - 6.0 1995 SQL Server 6.0 SQL95 6.5 1996 SQL Server 6.5 Hydra 7.0 1998 SQL Server 7.0 Sphinx - 1999 SQL Server 7.0 OLAP Tools Plato 8.0 2000 SQL Server 2000 Shiloh 8.0 2003 SQL Server 2000 64-bit Edition Liberty 9.0 2005 SQL Server 2005 Yukon 10.0 2008 SQL Server 2008 Katmai The code base for MS SQL Server (prior to version 7.0) originated in Sybase SQL Server, and was Microsofts entry to the enterprise-level database market, competing against Oracle, IBM, and, later, Sybase itself. Microsoft, Sybase and Ashton-Tate originally teamed up to create and market the first version named SQL Server 1.0 for OS/2 (about 1989) which was essentially the same as Sybase SQL Server 3.0 on Unix, VMS, etc. Microsoft SQL Server 4.2 was shipped around 1992 (available bundled with Microsoft OS/2 version 1.3). Later Microsoft SQL Server 4.21 for Windows NT was released at the same time as Windows NT 3.1. Microsoft SQL Server v6.0 was the first version designed for NT, and did not include any direction from Sybase. About the time Windows NT was released, Sybase and Microsoft parted ways and each pursued their own design and marketing schemes. Microsoft negotiated exclusive rights to all versions of SQL Server written for Microsoft operating systems. Later, Sybase changed the name of its product to Adaptive Server Enterprise to avoid confusion with Microsoft SQL Server. Until 1994, Microsofts SQL Server carried three Sybase copyright notices as an indication of its origin. Since parting ways, several revisions have been done independently. SQL Server 7.0 was the first true GUI based database server and was a rewrite from the legacy Sybase code. It was succeeded by SQL Server 2000, which was the first edition to be launched in a variant for the IA-64 architecture. In the eight years since release of Microsoft's previous SQL Server product (SQL Server 2000), advancements have been made in performance, the client IDE tools, and several complementary systems that are packaged with SQL Server 2005. These include: an ETL tool (SQL Server Integration Services or SSIS), a Reporting Server, an OLAP and data mining server (Analysis Services), and several messaging technologies, specifically Service Broker and Notification Services.