Comments on: Oracle block corruptions, DBV vs RMAN http://www.pythian.com/news/252/oracle-block-corruptions-dbv-vs-rman/ News and views from Pythian DBAs Fri, 10 Feb 2012 13:01:25 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: joeyonap http://www.pythian.com/news/252/oracle-block-corruptions-dbv-vs-rman/#comment-701073 joeyonap Thu, 05 Jan 2012 11:28:58 +0000 http://www.pythian.com/blogs/252/oracle-block-corruptions-dbv-vs-rman#comment-701073 Now that we know that we have block corruption.. How do we fix it? Now that we know that we have block corruption..

How do we fix it?

]]> By: mahen http://www.pythian.com/news/252/oracle-block-corruptions-dbv-vs-rman/#comment-592177 mahen Wed, 14 Sep 2011 09:46:07 +0000 http://www.pythian.com/blogs/252/oracle-block-corruptions-dbv-vs-rman#comment-592177 hi, i would like to remark the following: I was receiving ORA-0600 on update on a table ... I'm on Oracle 10.2.0.4 and backuped up with rman my database. I did not get any row in v$database_block_corruption. Afterwards, i used backup validate check logical. This time also, i did not get any row in v$database_block_corruption. We did a VALIDATE STRUCTURE cascade which gave the following: ERROR at line 1: ORA-01499: table/index cross reference failure - see trace file The resolution applied was : drop/create of all indexes on the table. Question: 1/ why was it not detected with RMAN ( normal or check logical ) ? 2/ we are reluctant to do ANALYZE VALIDATE for all tables in the database because, the performance can suffer. Is there any other way to check all the tables ? Thank you for your reply. hi,
i would like to remark the following:

I was receiving ORA-0600 on update on a table …

I’m on Oracle 10.2.0.4 and backuped up with rman my database.

I did not get any row in v$database_block_corruption.

Afterwards, i used backup validate check logical.

This time also, i did not get any row in v$database_block_corruption.

We did a VALIDATE STRUCTURE cascade which gave the following:

ERROR at line 1:
ORA-01499: table/index cross reference failure – see trace file

The resolution applied was : drop/create of all indexes on the table.

Question:
1/ why was it not detected with RMAN ( normal or check logical ) ?
2/ we are reluctant to do ANALYZE VALIDATE for all tables in the database because, the performance can suffer. Is there any other way to check all the tables ?

Thank you for your reply.

]]> By: David Mann http://www.pythian.com/news/252/oracle-block-corruptions-dbv-vs-rman/#comment-369310 David Mann Tue, 11 Aug 2009 14:50:17 +0000 http://www.pythian.com/blogs/252/oracle-block-corruptions-dbv-vs-rman#comment-369310 Thanks for this, just what I needed to know about checking blocks in RMAN without doing a full backup. Thanks for this, just what I needed to know about checking blocks in RMAN without doing a full backup.

]]> By: Chris http://www.pythian.com/news/252/oracle-block-corruptions-dbv-vs-rman/#comment-168135 Chris Wed, 05 Mar 2008 14:42:56 +0000 http://www.pythian.com/blogs/252/oracle-block-corruptions-dbv-vs-rman#comment-168135 Great article! Great article!

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