RE: removing an object from obj$
Date: Mon, 1 Aug 2011 18:46:04 +0200
Message-ID: <7DAF1D7F593F594DB5A66B87BF6EADF7137BA11726_at_AMISNT07.AMIS.local>
In this rare case, also as suggested by Support (the only exception when to do this), this valid.
The XDB environment does not have any relational enforced PK/FK and consists of standalone tables. "Relations" are created internally via code (internal packages and functions etc). Some objects are "joined" via these standalone tables and SYS base tables and it can occur that objects in those very early releases of XMLDB (like the 9.2.x versions) will cleaned in the XDB environment but not in the SYS base tables. So it can occur that the XDB objects is gone but still has residu in the SYS environment. AFAIK most of these issues have been solved in 10.x versions of the database.
Therefore, this delete is justified due to the circumstance PLUS the advise given by Oracle Support via a Service Request. This should be the ONLY exception of doing something like this: as requested by SUPPORT.
*
Stop the listener
*
Stop the database
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Start the database in restricted mode
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Login via SQL*Plus as SYSDBA
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Delete the object via SYS (be absolutely sure it is the correct DELETE!).
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Commit.
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Do not do anything else.
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Stop the database.
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Start the database normally
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Check
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Start the listener
M.
Van: oracle-l-bounce_at_freelists.org [oracle-l-bounce_at_freelists.org] namens Guillermo Alan Bort [cicciuxdba_at_gmail.com] Verzonden: maandag 1 augustus 2011 18:19 Aan: kevin.lange_at_ppoone.com
CC: oracle-l_at_freelists.org
Onderwerp: Re: removing an object from obj$
Why are you messing arround with oracle internal objects? you probably will end up breaking XDB... if you don't use it, remove it altogether as it will make the upgrade faster.
Cheers
Alan.-
On Mon, Aug 1, 2011 at 12:49 PM, Lange, Kevin G <kevin.lange_at_ppoone.com<mailto:kevin.lange_at_ppoone.com>> wrote: I get heartburn when someone says that to me. A "Clean" database versus a possible "Corrupt" database.
Try recreating the xdb items and see if it picks up the reference and does away with the invalid entry.
-----Original Message-----
From: Sheehan, Jeremy [mailto:JEREMY.SHEEHAN_at_nexteraenergy.com<mailto:JEREMY.SHEEHAN_at_nexteraenergy.com>]
Sent: Monday, August 01, 2011 10:44 AM
To: Lange, Kevin G; oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>
Subject: RE: removing an object from obj$
He wants a clean database. We're upgrading soon to 11g and he wants it pristine.
Jeremy
-----Original Message-----
From: oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>
[mailto:oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>] On Behalf Of Lange, Kevin G
Sent: Monday, August 01, 2011 11:41 AM
To: oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>
Subject: RE: removing an object from obj$
I would start with asking him WHY does he want it removed ...... And is it worth the possible db corruption .
-----Original Message-----
From: oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>
[mailto:oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>] On Behalf Of Sheehan, Jeremy
Sent: Monday, August 01, 2011 10:36 AM
To: oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org>
Subject: removing an object from obj$
Hello gurus!
My supervisor tasked me to figure out how to remove an invalid object in the database. it's an XML (XDB owned) object and I've used dbms_xmlschema.deleteSchema() to remove the object, but a reference still exists in obj$ and it has a status of 5 (invalid).
Oracle support said to do this .....
delete from obj$ where name=....;
My question is this. Has anyone tried this before? Support said that it's risky and there is the possibility of db corruption.
I'm running 9.2.0.8 on AIX.
TIA! Jeremy
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