Question

I’m implementing stored procedure that won’t have transactions inside. Actually, it will, but only on specific spots to reduce time to minimum. Nature of stored procedure is so I only want one runinng at a time.

I tried to use sp_getapplock but quickly found that it needs to be inside transaction.

Is there any other alternative where I can place lock on whole procedure but without wrapping it into transaction?

Answer 1

pass in Session via @LockOwner to get a Session-scope lock; this does not need a transaction to be alive when lock is taken.

For example

EXEC @res = sp_getapplock @Resource = 'Lock ID', @LockOwner = 'Session', @LockMode = 'Exclusive';
..
code
..

EXEC @res = sp_releaseapplock @Resource = 'Lock ID', @LockOwner = 'Session';