| Resource busy exception [message #2520] |
Tue, 23 July 2002 05:10  |
Mark Grimshaw
Messages: 73
Registered: June 2002
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Member |
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Hi,
Is there an exception that I can catch in a PL/SQL block which indicates that a lock (on an UPDATE statement) for a record is already held. I want to use the NOWAIT clause, detect that the resource is busy and report to the user.
Thanks
Mark Grimshaw
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| Re: Resource busy exception [message #2531 is a reply to message #2520] |
Wed, 24 July 2002 02:01  |
Mark Grimshaw
Messages: 73
Registered: June 2002
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Member |
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Thanks Tom,
Just wondering though, because you have to use the exception_init statement does this mean that the exception 00054 is called an UNDEFINED exception. If so I would have thought that it should actually be a defined one.
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| Re: Resource busy exception [message #2536 is a reply to message #2520] |
Wed, 24 July 2002 10:16 |
Todd Barry
Messages: 4819
Registered: August 2001
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Senior Member |
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That particular exception is just not pre-defined in the STANDARD package. By using the pragma (exception_init), we are associated an Oracle error number with our own defined exception. Alternatively, you could just let the -54 error be raised in the procedure and trap it at the application level.
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