!! Please do not post Off Topic to this List !!
Hi all:
I have a query, which behaves differently depending
on the input data (month/year). I have more than
15month worth of data in the database. The query
is completed under 1 minute for the first 13 month,
but for the last two months it just doesn't finish. I
have cancelled it after 36 minutes. The explain plans
are
differ in that the "quick" query uses more hash jonts,
while "slow" one utilizes more nested loops. All the
tables are analyzed. This must have something to
do with the data distribution, but what? Can anyone
shed some light onto that?
tia
=====
__________________________________________________
Terrorist Attacks on U.S. - How can you help?
Donate cash, emergency relief information
http://dailynews.yahoo.com/fc/US/Emergency_Information/
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Gene Gurevich
INET: [EMAIL PROTECTED]
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: [EMAIL PROTECTED] (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).
