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Re: JDEdwards and Uniform tablespaces

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Tue, 10 Apr 2001 20:25:39 +0100
Message-ID: <986930536.3356.0.nnrp-12.9e984b29@news.demon.co.uk>

I'm not really keen on system managed (autoallocate) tablespaces, but this seems like a good place to use them. Objects tend to start with a single 64K extent, then gain a few more at 64K before jumping by degrees through 1M, 8M, 64M. Consequently small objects don't waste much space but big objects don't have an extreme number of extents.

A variation on Ricky's theme might be to start everything off in autoallocate tablespaces, then move the items that are obviously
growing into uniform tablespaces a few at a time.

--
Jonathan Lewis
Yet another Oracle-related web site:  http://www.jlcomp.demon.co.uk

Practical Oracle 8i:  Building Efficient Databases
Publishers:  Addison-Wesley

Reviews at: http://www.jlcomp.demon.co.uk/book_rev.html



Ricky Sanchez wrote in message <3AD35A18.3F454243_at_more.net>...

>Jay-
>
>Is there any way you can figure out from their scripts, etc. which objects
do
>not get used? You could always place those in a sort of "dummy" tablespace,
or
>group of tablespaces, with particularly small extents and just let them sit
>there.
>
>Or, you might do a trial install with small-extent tablespaces and then run
the
>product and identify the useless objects, then reinstall. Probably a
tedious
>hassle, but may save lots of grief in the long run.
>
>- ricky
>
>
>Jay Strauss wrote:
>
>> Hi,
>>
>> We're doing a JDEdwards implementation. I'm building a new database so I
>> figure what better time to try out locally managed tablespaces and
uniform
>> extents. But when you install jdedwards it builds ~2200 tables, not all
are
>> used (20-25%), they build all the tables for all their modules, even if
you
>> don't use all the modules.
>>
Received on Tue Apr 10 2001 - 14:25:39 CDT

Original text of this message

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