ALTER DATABASE failed because a lock could not be placed on database

Question

I need to restart a database because some processes are not working. My plan is to take it offline and back online again.

I am trying to do this in Sql Server Manage

Answer 1

After you get the error, run

EXEC sp_who2

Look for the database in the list. It's possible that a connection was not terminated. If you find any connections to the database, run

KILL 

where is the SPID for the sessions that are connected to the database.

Try your script after all connections to the database are removed.

Unfortunately, I don't have a reason why you're seeing the problem, but here is a link that shows that the problem has occurred elsewhere.

http://www.geakeit.co.uk/2010/12/11/sql-take-offline-fails-alter-database-failed-because-a-lock-could-not-error-5061/