Re: Rebuilding Indexes...

From: Rachel Carmichael <wisernet100_at_yahoo.com>
Date: Fri, 27 Dec 2002 04:43:47 -0800
Message-ID: <F001.00522F84.20021227044347@fatcity.com>

Here's a reason:

have you ever tried to find the three duplicate rows in a 12 million row table without using the primary key constraint? I've had to disable or drop the constraint in order to use the exceptions table. Once I do that, even if I've built a separate index that enforces the primary key constraint, Oracle drops the index. So I HAVE to rebuild it. If I allow the index to be rebuilt when I re-enable the primary key constraint, it builds it in the default tablespace of the table owner, not where I want it.

if anyone has a better way to fix this problem, I'm more than happy to hear it! It's a data warehouse and the third party app has a bug we can't find and on occasion sqlloads (via direct path) duplicate rows

Rachel

• Jared Still <jkstill_at_cybcon.com> wrote:
  >
  > Though I have published a script for determining indexes that
  > need to be rebuilt, and then rebuilding them, I have to say that
  > this is almost never necessary.
  >
  > Why are you rebuilding indexes? About the only reason for ever
  > doing so is that the BLEVEL >= 5.
  >
  > goto asktom.oracle.com, and do a search on 'index rebuild'.
  >
  > Currently, the third article may be of interest.
  >
  > Jared
  >
  > On Thursday 26 December 2002 12:24, Richard Huntley wrote:
  > > Anyone have any useful scripts for doing this?
  > >
  > > TIA,
  > > Rich
  >
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Author: Rachel Carmichael
  INET: wisernet100_at_yahoo.com

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Received on Fri Dec 27 2002 - 06:43:47 CST