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Killing spid's or processes on a sql server from the

I often restore a version of a prod database on top of a test database.  Many times the test database will have active connections that i kill off with the activity monitor in ssms. (allowing the restore to proceed)  Would putting the database in single-user mode offer me the same results of killing all active connections.  what are the risks of putting it in single user mode?

proposed steps.  

put test database in single-user mode
restore production database to the test database.

will the test database be in single user mode after the restore.
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jamesmetcalf74
Asked:
jamesmetcalf74
3 Solutions
 
Russ SuterCommented:
I don't think there's a real advantage to putting the DB into single user mode. If your current process of killing SPIDs is working just stick with that. The restore database dialog does have an option that lets you close connections before proceeding and it warns that it may put the DB into single user mode. However I've never had this happen and if it ever does it's a quick single line query to put it back in to multiuser mode.
DB Restore Options
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Chris LuttrellSenior Database ArchitectCommented:
we use this statement all the time and it is what I see from many knowledgeable SQL people:
alter database xxx set single_user with rollback immediate

then do your restore and of course set it back to multi user as your last command
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Scott PletcherSenior DBACommented:
I've had so many issues with trying to get dbs back out of SINGLE_USER mode that I force the db OFFLINE, then restore it.  That also absolutely prevents any new connection from occurring on the db.  By default, the restore puts it back ONLINE (at least in my experience so far, thru SQL 2012 (only)).

ALTER DATABASE [db_name] SET OFFLINE WITH ROLLBACK IMMEDIATE;
RESTORE DATABASE [db_name] ... WITH REPLACE, ...;
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jamesmetcalf74Author Commented:
thanks gentlemen
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