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

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Wed, 05 Mar 2003 09:59:08 -0800
Message-ID: <F001.00560F37.20030305095908@fatcity.com>

Ethan,

I am *shocked* we are running RAC 9202 ... I haven't seen anomalies ... does your friend have any example?

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 !!

-----Original Message-----
Sent: Wednesday, March 05, 2003 11:35 AM To: Multiple recipients of list ORACLE-L

Just had a fellow tell me that explain plan in completely unreliable in 9.2 and getting accurate results requires direct SGA access on executing SQL (he is working in a RAC environment). They are running Precise, a good product, but this sounds like something a sales person told him. I can only recall that occasionally the plan executed is not the plan you see in explain plan. Anyone know the truth of this issue?

Ethan

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

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Received on Wed Mar 05 2003 - 11:59:08 CST