Oracle-L: RE: How Reliable is Explain Plan in 9.2

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Thu, 06 Mar 2003 05:33:47 -0800
Message-ID: <F001.00561F72.20030306053347@fatcity.com>

Thanks Wolfgang ... I understand your point ...

I was just trying to be a little cynical ... about these *facts* ... the very elements about which Oracle tells us to rely upon.

Who in their right mind would add/drop an index on a live production database without thinking 'A Ha ... dropping this unique key index shouldn't hurt my 10 gazillion row table at all.'?
I am now worried about optimizer taking past executions into account ... if you have a person consistently committing mistakes, and you expect this person to learn from his/her experience, what do you think will happen ??

(Stay with me ... it's been a bad morning so far ... a wrong DB was
refreshed and someone decided last night to arrange a demo this afternoon.) Raj

Rajendra dot Jamadagni at espn dot com
Any views expressed here are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !!

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Author: Jamadagni, Rajendra
  INET: Rajendra.Jamadagni_at_espn.com

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Received on Thu Mar 06 2003 - 07:33:47 CST