Re: RE: Time to read 6000 (block size 2k) blocks

From: <jaysingh1_at_optonline.net>
Date: Fri, 06 Aug 2004 13:09:34 -0400
Message-id: <3f7d9843f794bc.3f794bc3f7d984@optonline.net>

Jurijs

You are correct. It worked. Now it is doing 9 LIOs instead of 18,800 LIOs. Thanks you so much.

Original Message ----- From: J.Velikanovs_at_alise.lv Date: Friday, August 6, 2004 11:12 am Subject: Re: RE: Time to read 6000 (block size 2k) blocks

> Rows Row Source Operation
> ------- ---------------------------------------------------
> 1 SORT UNIQUE
> 1 COUNT STOPKEY
> 1 NESTED LOOPS
> 4766 TABLE ACCESS BY INDEX ROWID PROFILEDUSER (it has
> 450,000 rows)
> 4767 INDEX RANGE SCAN (PROFILEDUSER_IX03)
> 1 TABLE ACCESS BY INDEX ROWID EXTENDEDATTRIBUTES (it has
> 15,000
> rows)
> 9530 INDEX UNIQUE SCAN (ATTRIBUTES_PK)
>
> The idea is: to start NL with EXTENDEDATTRIBUTES table. Bacause in
> SQL you
> have E.CUSTOMERID = 'ABCDEFGH', and this seems ID value, which
> will return
> 1 row, instead 4766 loops thought PROFILEDUSER.
>
> Try to get EXTENDEDATTRIBUTES as driven table. Or I am wrong ?
>
>
> Jurijs
> +371 9268222 (+2 GMT)

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Received on Fri Aug 06 2004 - 12:06:29 CDT