What is the purpose of TempDB in SQL Server?

Question

The TempDB database is one of the most important SQL Server system databases, that is used to store temporary user objects, such as the temporary tables that are defined by the user or returned from table-valued function execution, temporary stored procedures, table variables or indexes. 13 янв. 2020 г.

What is TempDB in SQL Server used for?

The tempdb system database is a global resource that holds: Temporary user objects that are explicitly created. They include global or local temporary tables and indexes, temporary stored procedures, table variables, tables returned in table-valued functions, and cursors.

Why TempDB is growing in SQL Server?

Uncontrolled TempDB growth. There are many reasons for uncontrolled TempDB growth events. Much like your operating system has a page file to handle memory overflows, SQL Server uses TempDB like a page file. The most common occurrence of this is when a query “spills” to TempDB.

Why is TempDB so big?

TEMPDB would have grown to 30GB at some point because it needed that much space for some certain queries. I would recommend you set the TEMPDB file size to 30GB - this will presize TEMPDB for you in case SQL SERVER is restarted since TEMPDB is recreated every time SQL Server is restarted.

Where is TempDB in SQL Server?

Where do I find the TempDB database on disk and in SSMS? The files can be found by querying sys. sysfiles dmv or the file pane on the database properties window. SELECT * FROM TempDB.

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