RE: DML on dual?

From: Herring Dave - dherri <Dave.Herring_at_acxiom.com>
Date: Thu, 12 Apr 2007 13:37:45 -0500
Message-ID: <7ED53A68952D3B4C9540B4EFA5C76E360312FF4D@CWYMSX04.Corp.Acxiom.net>

Good call! I didn't see this previously, but then again I didn't search for it specifically:

LAST_LOAD_TIME LOADED_VERSIONS OPEN_VERSIONS EXECUTIONS FIRST_LOAD_TIME CPU_TIME

------------------- ------------------ ------------------ ------------------ ------------------- ------------------
      ELAPSED_TIME
------------------

SQL_TEXT

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2007-04-12/08:59:30                  1                  1                927 2007-04-06/20:30:02             352600
            539648

SELECT NULL FROM DUAL FOR UPDATE NOWAIT I also now have the userid that generates these. At least now I know. Thanks again.

Dave
 

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David C. Herring, DBA  |   A c x i o m  Delivery Center Organization 630-944-4762 office | 630-430-5988 wireless | 630-944-4989 fax

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From: John Darrah [mailto:darrah.john_at_gmail.com] Sent: Thursday, April 12, 2007 1:20 PM
To: Herring Dave - dherri
Cc: oracle-l_at_freelists.org
Subject: Re: DML on dual?

I've seen several oracle trace files that have the statement "SELECT 1 FROM DUAL FOR UPDATE NOWAIT" I have no idea what the purpose of that statement is but it probably explains what you are seeing.

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Received on Thu Apr 12 2007 - 13:37:45 CDT