What causes TempDB to fill up?

What can cause tempdb to grow?

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.

How do I stop my tempdb from filling up?

CREATE the necessary space by dropping objects in the filegroup, adding additional files to the filegroup,or setting autogrowth on for existing files in the filegroup. When investigating a TempDB issue like this, most simply restart the SQL Server instance.

What is taking up space in tempdb?

This means that a temporary table consumes space in tempdb as long as the session is still open (or until the table is explicitly dropped), while a table variable's space in tempdb is deallocated as soon as the batch is ended.

What happens when tempdb gets full?

The TempDB database is special in many ways, but an interesting aspect is that when its files automatically grow when they become full, this growth is not persisted and will be undone on the next restart of the SQL Server service.