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RE: From row to datafile

From: Anthony Molinaro <amolinaro_at_wgen.net>
Date: Wed, 4 Aug 2004 17:22:08 -0400
Message-ID: <D17DB304A9F42B4787B68861F9DAE61C51D1F5@wgdc02.wgenhq.net>


Dennis,

  select substr(rowid,7,3) from your_table...=20

 hope that helps,

-----Original Message-----

From: DENNIS WILLIAMS [mailto:DWILLIAMS_at_LIFETOUCH.COM]=20 Sent: Wednesday, August 04, 2004 5:01 PM To: 'oracle-l_at_freelists.org'
Subject: From row to datafile

List - Does anyone know how to relate a database row to the datafile where it is stored? Here is the situation: we are going to test the recovery of a database, removing a few data files and then recovering them from RMAN backup. These data files store image blobs out-of-line. I would like to be able to list a few images from a particular data file so after recovery we could retrieve those images. There are some queries for dealing with database corruption where you can take a given file and block and relate it back using dba_segments and sys.uet$. I'm not sure how to work for a specific row or with out-of-line blobs. Any ideas appreciated.

Dennis Williams
DBA
Lifetouch, Inc.

"We all want progress, but if you're on the wrong road, progress means doing an about-turn and walking back to the right road; in that case, the man who turns back soonest is the most progressive."=20
-- C.S. Lewis



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Received on Wed Aug 04 2004 - 16:18:09 CDT

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