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I'm unable to drop, delete or alter a database in my Local SQL Server instance.

I have run sp_Who2 and there don't appear to be any processes using the database apart from a process which gets spawned by my issuing the Alter Database command (I do this against the Master db). This process has a Wait type of LCK_M_X and a value of -2 for the Blocked By attribute.

I have issued KILL commands against them and I've restarted all the related system services and my machine a few times but to no avail. Is there anything else I can try?

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-2 is an DTC transaction. What else is going on? And try this sqlserverclub.com/articles/… – gbn Dec 12 '11 at 12:44
Thanks for your response. Please see the screenshot here: largedocument.com/4/ec24da47/dbLockIssue.PNG - I can't see anything too suspicious apart from the one above. – 5arx Dec 12 '11 at 12:55

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Stop (do your alter) and start DTC and all will be fine.

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Worked for me! Many thanks :-) – 5arx Dec 13 '11 at 10:12

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