DBCC dllname (FREE) (Transact-SQL)
Applies to: SQL Server
Unloads the specified extended stored procedure DLL from memory.
DBCC <dllname> ( FREE ) [ WITH NO_INFOMSGS ]
To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation.
The name of the DLL to release from memory.
Suppresses all informational messages.
When an extended stored procedure is executed, the DLL remains loaded by the instance of SQL Server until the server is shut down. This statement allows for a DLL to be unloaded from memory without shutting down SQL Server. To display the DLL files currently loaded by SQL Server, execute
When a valid DLL is specified,
DBCC <dllname> (FREE) returns:
DBCC execution completed. If DBCC printed error messages, contact your system administrator.
Requires membership in the sysadmin fixed server role or the db_owner fixed database role.
The following example assumes that
xp_sample is implemented as
xp_sample.dll and has been executed.
DBCC <dllname> (FREE) unloads the
xp_sample.dll file associated with the
xp_sample extended procedure.
DBCC xp_sample (FREE);