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RE: odd explain plan

From: Koivu, Lisa <lisa.koivu_at_efairfield.com>
Date: Tue, 26 Mar 2002 13:48:44 -0800
Message-ID: <F001.004342DB.20020326134844@fatcity.com>


Gene, what's the next step in the explain plan? Can you post it? Are the dimension tables small?

Lisa Koivu
Oracle Database Tank.
Fairfield Resorts, Inc.
954-935-4117

> -----Original Message-----
> From: Gene Gurevich [SMTP:g_u_r_e_v_i_c_h_at_yahoo.com]
> Sent: Tuesday, March 26, 2002 4:26 PM
> To: Multiple recipients of list ORACLE-L
> Subject: odd explain plan
>
> Hi.
>
> I am tuning a query that runs against a star schema
> and a few dimension tables. The plan shows that the
> first step is two join two dimension tables via a
> cartesian join. Why would Oracle does that instead of
> joining the dimensions to the fact table one after
> another? Can anyone offer an explanation?
>
> thank you
>
> =====
>
>
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> Author: Gene Gurevich
> INET: g_u_r_e_v_i_c_h_at_yahoo.com
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Koivu, Lisa
  INET: lisa.koivu_at_efairfield.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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Received on Tue Mar 26 2002 - 15:48:44 CST

Original text of this message

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