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RE: Export table to determine extent of block corruption

From: <Rhojel_Echano_at_sgs.com>
Date: Thu, 04 Dec 2003 21:44:25 -0800
Message-ID: <F001.005D8D1E.20031204214425@fatcity.com>



Thanks Dennis! I've read a couple of docs on getting enough information on the corruption.
I'd like to use DBMS_REPAIR.CHECK_OBJECT, but I'd like to know first if this would be "safe"
to run on an online production database. Could anyone comment on this?

Oh Dennis, sorry for the nightmares ;-)

Best Regards




DENNIS WILLIAMS <DWILLIAMS@LIFETOUCH.COM>
Sent by: ml-errors@fatcity.com

12/05/2003 12:09 PM
Please respond to ORACLE-L

       
        To:        Multiple recipients of list ORACLE-L <ORACLE-L@fatcity.com>
        cc:        (bcc: Rhojel Echano/Manila/PH/SGS)
        Subject:        RE: Export table to determine extent of block corruption



Rhojel - I'm not sure if export gives you enough information. Usually the
reason to export is that if you can export, you have a good copy of the data
and you can breathe a little easier. But usually export will fail on the
first corrupt block. Your corrupt block may be an index block, so export
might succeed.
Doing a quick Google search yields
http://www.quest-pipelines.com/newsletter-v4/0103_C.htm
<http://www.quest-pipelines.com/newsletter-v4/0103_C.htm> . I haven't read
it in detail, so I can't vouch for its accuracy. Metalink is another way to
get some good advice for a problem like this. The last time I had this
problem I saved Note 34371.1, but that may be obsolete now since it was
about 5 years ago. But the horror seems like yesterday. Good luck. Now
you've given me nightmares.



Dennis Williams
DBA
Lifetouch, Inc.
dwilliams@lifetouch.com

-----Original Message-----
Sent: Thursday, December 04, 2003 9:14 PM
To: Multiple recipients of list ORACLE-L



Hi Everyone!

This is my first time to encounter data block corruption in my entire DBA
life(just 2 years FYI) =-)
(this is not something to be happy about but heck of an experience).
I'd like to know the extent of information that I can get from exporting
that table that I believe has the corrupted block.. will I be able to know
the absolute file# (AFN), relative file# (RFN), and the block# from the
error that EXP will return>

Regards,
Rhojel

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Author: DENNIS WILLIAMS
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Received on Thu Dec 04 2003 - 23:44:25 CST

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