Re: AUTOALLOACATE vs. UNIFORM extent size in Oracle10g
Date: Fri, 4 Mar 2011 06:10:18 -0800 (PST)
Message-ID: <933506.21185.qm_at_web65405.mail.ac4.yahoo.com>
I don't understand your comment as record size directly relates to db_block_size with regard to row chaining/migration. Variable extent sizes won't mitigate row chaining for variable sized records but a larger block size might, depending upon the length of the largest record, as there is a maximum block size of 32k that can be defined.
David Fitzjarrell
From: Subodh Deshpande <deshpande.subodh_at_gmail.com> To: mdinh_at_xifin.com
Cc: Oracle Mailinglist <oracle-l_at_freelists.org> Sent: Thu, March 3, 2011 11:09:52 PM
Subject: Re: AUTOALLOACATE vs. UNIFORM extent size in Oracle10g
UNIFORM if record size is not going to change..
On 4 March 2011 00:24, Michael Dinh <mdinh_at_xifin.com> wrote:
In OLTP and for application, I use AUTOALLOCATE.
>
>However, there are some tables where the data is transient, then I use UNIFORM
>64K, but thinking it should have been 1M instead.
>
>In DW, I use UNIFORM 8M
>
>Michael Dinh
>
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>From:oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On
>Behalf Of Mandal, Ashoke
>Sent: Thursday, March 03, 2011 10:43 AM
>To: exriscer_at_gmail.com; Hemant K Chitale
>Cc: Oracle Mailinglist
>Subject: AUTOALLOACATE vs. UNIFORM extent size in Oracle10g
>
>I would like find out your personal experience on using AUTOALLOACTE for extent
>management in Oracle 10g. I usually use UNIFORM extent size but wondering what
>are the drawbacks for using AUTOALLOACTE.
>
>Thanks,
>Ashoke
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Received on Fri Mar 04 2011 - 08:10:18 CST