Question

I have a SQL query that is quite simply select * from tblOrders where customerID = 5000but it never returns. I waited 10 minutes and gave up.

The weirdest thing is that other queries on the same DB, but on another table, works fine. Removing the where-clause doesn’t help either, so it seems like the table is somehow not responding. It’s about 30000 lines, so it’s not the biggest table either.

I’m using MS SQL SMS 2008 Express against a SQL Server 2008 express running on a remote server.

Answer 1

It sounds like your table is locked

run this query to see what locks are held against it.

USE master;
GO
EXEC sp_lock;
GO

but table locking is a whole mindfield of its own
here is some info in the sp_lock system stored proc
http://msdn.microsoft.com/en-us/library/ms187749.aspx

when you find the lock you can kill it

KILL { session ID | UOW } [ WITH STATUSONLY ] 

http://msdn.microsoft.com/en-us/library/ms173730.aspx