Temporary tables are created in the TempDB database, which persists for a particular session. The objective is to maintain that session, until the temp table information is used and dump the data into a physical table. To maintain a session in SSIS, there is a ‘Retain Same Connection’ property of the Connection Manager. If we [...]

In this article series we will focus on the primary points of T-SQL performance tuning. In this first installment I will lopok at tuning temp tables, table variables and the Union command. Temp Tables and Table Variables Most database developers are used to breaking down code into small chunks using  temp tables or table variables  [...]