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SELECT for UPDATE in web application

From: Biff Malone <biffmalone_at_hotmail.com>
Date: 25 Feb 2003 06:38:05 -0800
Message-ID: <f2efd06c.0302250638.13c27e3d@posting.google.com>


If I've got a web application that is doing a SELECT FOR UPDATE for one user. When subsequent user comes tries to do a SELECT FOR UPDATE, my application just hangs until the lock is released. I've tried using the "NOWAIT" clause at the end of the statement, but that doesn't help. Is there a test I can do to figure out if there exists a lock on a record? Is an exception thrown when a lock exists and the application does a SELECT FOR UPDATE (preferably in a non-DB-specific way)? Received on Tue Feb 25 2003 - 08:38:05 CST

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