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RE: Size of segment

From: Hately Mike <Mike.Hately_at_churchill.com>
Date: Mon, 29 Apr 2002 07:29:01 -0800
Message-ID: <F001.00451DE3.20020429072901@fatcity.com>


Charlie,

I think conventional wisdom suggests splitting data and index onto separate disks rather than separate tablespaces.
Just to start the unsubstantiated anecdotal evidence I've seen this help on more occasions than I care to recall.
I'm the first to agree though that separating data and indexes into separate tablespaces won't help if they're on the same disks. It will make them easier to split in future though.

Regards,
Mike Hately

-----Original Message-----
Sent: Monday, April 29, 2002 3:54 PM
To: Multiple recipients of list ORACLE-L

Ray Stell wrote:
>
> On Mon, Apr 29, 2002 at 05:13:22AM -0800, Ganesh Raja wrote:
> > My Suggestion would be to give Uniform sized Extents and move the table
and
> > Index into that tablespace.
> --
>
> You are taking a preformance hit having the indexes and tables
> in the same tablespace, are you not?

There is/was a recent and active discussion of this topic in the Oracle Server Usenet forum.

While it has long been "recommended" that tables & indexes be placed in separate tablespaces, the current conventional wisdom disputes the claim that performance can/will be enhanced by separating data and indexes into different tablespaces.

If anybody can produce recent benchmark results which shows that separating index & data into different tablespaces improves performance, I'd like to see the details behind the benchmark and the results.

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Author: Hately Mike
  INET: Mike.Hately_at_churchill.com

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Received on Mon Apr 29 2002 - 10:29:01 CDT

Original text of this message

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