RE: Delete slowing..

From: Koivu, Lisa <lisa.koivu_at_efairfield.com>
Date: Tue, 27 Nov 2001 14:26:07 -0800
Message-ID: <F001.003CE182.20011127130531@fatcity.com>

Mark, how many indexes are on the table?    Are there any unindexed foreign keys?

Lisa Koivu
Oracle Database Monkey Mama.
Fairfield Resorts, Inc.
954-935-4117

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

From:   Mark Leith [SMTP:mark_at_cool-tools.co.uk]
Sent:   Tuesday, November 27, 2001 1:55 PM
To:     Multiple recipients of list ORACLE-L

Subject:        Delete slowing..

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
 Sales & Marketing      | F: +44 (0)870 127 5283
 Cool Tools UK Ltd      | E: mark_at_cool-tools.co.uk

---

           http://www.cool-tools.co.uk
       Maximising throughput & performance

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Mark Leith


  INET: mark_at_cool-tools.co.uk



Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Received on Tue Nov 27 2001 - 16:26:07 CST