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Delete slowing..

From: Mark Leith <mark_at_cool-tools.co.uk>
Date: Tue, 27 Nov 2001 11:21:19 -0800
Message-ID: <F001.003CDEFF.20011127105517@fatcity.com>

Hi list people :)

We have a customer who has been running a particular delete statement against a table for a while now, which usually ran within minutes. All of a sudden this table has suddenly gone from a few minutes right up to 50! He wants to diagnose why..

Where would you start?

I have a few ideas of my own - like stale stats, small rollback segments etc. - but am after some of your advice also before I get back to him tomorrow morning.. Not sure on the Oracle version, OS, or even amount of rows he is deleting or size of the table (yet, I'll find this out tomorrow), but there has to be a pretty standard way of diagnosing this..

All help appreciated.

Mark


 Mark Leith             | T: +44 (0)1905 330 281
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Author: Mark Leith
  INET: mark_at_cool-tools.co.uk

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