Brad M. McGehee
Although most DBAs know about the tempdb database, many seem to think of it as a black box that takes care of itself with no involvement required from the DBA. Although this may be true on smaller, less active SQL Server instances, tempdb can significantly affect SQL Server’s performance. DBAs can act to ensure that tempdb performance is optimized and to optimize the overall performance of SQL Server.
The tempdb database is one of SQL Server’s included system databases and is used as a shared temporary workspace for many different kinds of activities, such as the following: