de-dup process

From: A Ebadi <ebadi01_at_yahoo.com>
Date: Tue, 12 Dec 2006 14:31:17 -0800 (PST)
Message-ID: <841893.87492.qm@web31202.mail.mud.yahoo.com>

We have a huge table (> 160 million rows) which has about 20 million duplicate rows that we need to delete. What is the most efficient way to do this as we will need to do this daily?   A single varchar2(30) column is used to identified duplicates. We could possibly have > 2 rows of duplicates.    

  We are doing direct path load so no unique key indexes can be put on the table to take care of the duplicates.    

  Platform: Oracle 10G RAC (2 node) on Solaris 10.    

  Thanks!  

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http://www.freelists.org/webpage/oracle-l Received on Tue Dec 12 2006 - 16:31:17 CST