Microsoft SQL Server is a relational database management system that Microsoft has created. It is a database server, which is a software product whose principal role is to store and retrieve data as required by other software programs, which may operate on the same computer or on a networked computer (including the Internet). Microsoft SQL Server is available in at least a dozen distinct versions, each aimed at a particular audience and designed for varied workloads ranging from simple single-machine applications to huge Internet-facing systems with many concurrent users.
