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Re: Re: Should percent increase higher than 0 in 817?

From: <rgaffuri_at_cox.net>
Date: Tue, 01 Jul 2003 11:03:50 -0700
Message-ID: <F001.005BD203.20030701105026@fatcity.com>


thank you. new project for me, so if im going to argue with someone who has been here for a while... want to be safe.
>
> From: Gaja Krishna Vaidyanatha <[EMAIL PROTECTED]>
> Date: 2003/07/01 Tue PM 02:25:00 EDT
> To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
> Subject: Re: Should percent increase higher than 0 in 817?
>
> Greetings,
>
> Non-zero PCTINCREASE causes unnecessary free space
> fragmentation in your tablespaces and should be
> avoided. Especially in 8.1.7, where there is no need
> for this, given that locally-managed tablespaces are
> supported, where PCTINCREASE is NOT even relevant. If
> you use
>
> One of the historical reasons for having a non-zero
> PCTINCREASE in the Oracle6 and Oracle7 days, was to
> urge SMON to automatically coalesce free space, at the
> end of the file, especially after an object is
> dropped. In 7.3, the alter tablespace XXX coalesce
> command was introduced, which provided on-demand
> coalescing even with PCTINCREASE at 0.
>
> If you have dictionary-managed tablespaces try to
> convert to locally-managed tablespaces. Otherwise, use
> a PCTINCREASE of 0, use uniform extent sizes at the
> tablespace and DO NOT use extent-sizing at the
> object-level.
>
>
> Cheers,
>
>
> Gaja
>
> --- [EMAIL PROTECTED] wrote:
> > Everything I have seen says no. I did the following.
> >
> > Set PCTINCREASE = 0
> > Set my initial and next extents to 5m so they are
> > uniform. A woman I work with swears there is Oracle
> > documentation that in 817 PCTINCREASE should be
> > greater than 0 because the default is 50.
> >
> >
> > ORA-03232 unable to allocate an extent of string
> > blocks from tablespace string
> >
> > Cause: An attempt was made to specify a
> > HASH_MULTIBLOCK_IO_COUNT value that is greater than
> > the tablespace's NEXT value.
> >
> > Action: Increase the value of NEXT for the
> > tablespace using ALTER TABLESPACE DEFAULT STORAGE or
> > decrease the value of HASH_MULTIBLOCK_IO_COUNT.
> >
> >
> > --
> > Please see the official ORACLE-L FAQ:
> > http://www.orafaq.net
> > --
> > Author: <[EMAIL PROTECTED]
> > INET: [EMAIL PROTECTED]
> >
> > Fat City Network Services -- 858-538-5051
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> =====
>
>
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Gaja Krishna Vaidyanatha
> INET: [EMAIL PROTECTED]
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: <[EMAIL PROTECTED]
  INET: [EMAIL PROTECTED]

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Received on Tue Jul 01 2003 - 13:03:50 CDT

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