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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Many tables in a view.
Hi,
Reduce the number of tables participating in the view. Anything more than 4 or 5 tables is not recommended!
Regards
Rajagopal Venkataramany
----Original Message Follows----
From: "Jack van Zanen" <nlzanen1_at_ey.nl>
Reply-To: ORACLE-L_at_fatcity.com
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Subject: Many tables in a view.
Date: Mon, 22 May 2000 00:54:35 -0800
Hi All
I have a question:
If we join 11 tables in a view the performance of a select on that view will
drop dramatically compared to 10 tables in the join.
I have heard something about this being a optimizer issue that does not
really
like this many tables in a join.
What are the possible solutions to make these querries run better??
Jack
-- Author: Jack van Zanen INET: nlzanen1_at_ey.nl 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: ListGuru_at_fatcity.com (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). ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.comReceived on Mon May 22 2000 - 09:58:44 CDT
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