RE: removing an object from obj$
Date: Mon, 1 Aug 2011 14:47:11 -0400
Message-ID: <018401cc507b$6d3dade0$47b909a0$_at_rsiz.com>
By the way, unless what Marco noted in the previous note on the thread is your exact situation, then if your boss wants a "CLEAN" 11g database, consider what it would cost to build a new empty 11g database and move the data in (without ever creating the invalid XDB object.) Hey, even if the situation Marco described is your situation, notice his carefully cautionary writing about it.
Depending on what is in your database this can range from trivially simple to arbitrarily complex. Depending on the size and whether the bulk of your tablespaces can be easily transported it can be an effort of short to impractically long duration compared to your operational requirements.
If yours turns out to be simple and short, I'd think seriously about laying down a fresh clean empty (well rapid installed image copy, but no user data), creating your users and figuring out the best way to load your data.
Notice those two scales are often unrelated: Completely simple sets of tables can be huge, and very complex sets of tables can be very small.
I'd rather build a new container for something big and simple than complex and small, as long as the window allowed to move the big simple thing is generous, because it is a lot easier to be pretty doggone sure you got it right. (Except for the one missing invalid object, in your case, which you want to miss.)
Messing with direct sql on dictionary objects is not "plan A" for having a "clean" database. I would rather have some invalid objects that the database knows about which are artifacts of normal commands than a production database that has been tampered with.
mwf
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org]
On Behalf Of Marco Gralike
Sent: Monday, August 01, 2011 12:47 PM
To: cicciuxdba_at_gmail.com; kevin.lange_at_ppoone.com
Cc: oracle-l_at_freelists.org
Subject: RE: removing an object from obj$
BTW You can't remove it in 11g anymore, due to the fact that it is a core part of the database and among others takes care of...
Dependancies exists for, for example:
UTL_MAIL, UTL_FILE, UTL_TCP, UTL_HTTP The PL/SQL Gateway
Database Vault
DB Console
DBMS_METADATA ...
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> 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]
Sent: Monday, August 01, 2011 10:44 AM
To: Lange, Kevin G; 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] On Behalf Of Lange, Kevin G
Sent: Monday, August 01, 2011 11:41 AM
To: 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] On Behalf Of Sheehan, Jeremy
Sent: Monday, August 01, 2011 10:36 AM
To: 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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Received on Mon Aug 01 2011 - 13:47:11 CDT