We can shrink the tempdb data file without restarting the SQL Server using the following steps.
First verify the space usage information from MDF file, If you find there is enough space to shrink then ensure there wont be any open transactions running on the tempdb and execute the below steps to shrink the TempDB Data File.
DBCC FREEPROCCACHE
GO
DBCC DROPCLEANBUFFERS
go
DBCC FREESYSTEMCACHE ('ALL')
GO
DBCC FREESESSIONCACHE
GO
DBCC SHRINKFILE (TEMPDEV,1024)
GO
First verify the space usage information from MDF file, If you find there is enough space to shrink then ensure there wont be any open transactions running on the tempdb and execute the below steps to shrink the TempDB Data File.
DBCC FREEPROCCACHE
GO
DBCC DROPCLEANBUFFERS
go
DBCC FREESYSTEMCACHE ('ALL')
GO
DBCC FREESESSIONCACHE
GO
DBCC SHRINKFILE (TEMPDEV,1024)
GO
