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

From: Richard Ji <richard.ji_at_mobilespring.com>
Date: Wed, 05 Mar 2003 10:49:36 -0800
Message-ID: <F001.00561023.20030305104936@fatcity.com>

Consider how important explain plan is, I highly doubt it's "completely unreliable".

-----Original Message-----
Sent: Wednesday, March 05, 2003 8:35 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: Post, Ethan INET: Ethan.Post_at_ps.net

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Author: Richard Ji
INET: richard.ji_at_mobilespring.com

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