flush shared_pool and query performance

From: <genegurevich_at_discover.com>
Date: Thu, 3 Apr 2008 16:40:05 -0500
Message-ID: <OF0C3378A2.8BE78709-ON86257420.007662FD-86257420.007706B0@discover.com>


Hi all:

I am noticing that the same SQL executed before and after 'alter system flush shared_pool' completes in VASTLY
different time - 0.01s before the command and 0.3s after the command. I wonder why is that. When I flush the
shared_pool, the library cache is flushed and so my SQL needs to be reparsed. Is that reasonable for parsing to take 0.3s?

thank you

Gene Gurevich

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Received on Thu Apr 03 2008 - 16:40:05 CDT

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