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RE[2]: Re-claiming the space from Table after deletion

From: <rafi_at_vsnl.net>
Date: Mon, 12 Mar 2001 03:01:56 -0800
Message-ID: <F001.002C9636.20010312023020@fatcity.com>

Do you mean that PCTUSED-100 & PCTFREE-5 will help utilise the next extents more efficiently.

Will PCTUSED affect only future blocks or existing ones too.

Also, will increasing PCTUSED affect system speed?

Kind regards,
Rafi

ahillman_at_erols.com wrote
You are right. In this case my last point of increasing PCTUSED applies to hole table

Alex Hillman

> -----Original Message-----
> From: root_at_fatcity.com [mailto:root_at_fatcity.com]On Behalf Of Raghu Kota
> Sent: Friday, March 09, 2001 1:18 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: Re-claiming the space from Table after deleteion
>
>
> Mr Alex
>
> You overlooked imp point that is oracle 7.3
>
>
> >From: "Alex Hillman" <ahillman_at_erols.com>
> >Reply-To: ORACLE-L_at_fatcity.com
> >To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> >Subject: RE: Re-claiming the space from Table after deleteion
> >Date: Fri, 09 Mar 2001 08:45:57 -0800
> >
> >First of all, as Joe Testa said - if you partitioned this table by date -
> >let say one partition per month - you can truncate partitions that you
> >don't
> >need anymore. Second - if this option is not available - let say that you
> >need delete most but not all records from specific partition - you can
> >create temporary table, select into this table all records that
> should not
> >be deleted, truncate partition and then select into partition all records
> >from temporary table. And last case - if you need to delete let
> say 30-50%
> >of the recors and this table does not have a lot of deletes in everyday
> >activity and most deletes are batch in the end of month or some other
> >period - you can increase value of PCTUSED to 100-PCTFREE-5.
> >
> >Alex Hillman
> >
> > > -----Original Message-----
> > > From: root_at_fatcity.com [mailto:root_at_fatcity.com]On Behalf Of
> > > rafi_at_vsnl.net
> > > Sent: Friday, March 09, 2001 4:56 AM
> > > To: Multiple recipients of list ORACLE-L
> > > Subject: Re-claiming the space from Table after deleteion
> > >
> > >
> > > Dear All,
> > >
> > > Platform: Solaris 2.6, Oracle: 7.3.4.0
> > >
> > > We have a few tables which are growing very fast due to large no of
> > > insertions. But the data gets obselete after a month and we use a
> > > procedure to delete the obselete data from the tables.
> > >
> > > The problem is that the table does not free the space even
> > > after the deletion of 40% of the data.
> > >
> > > How can we re-claim the unused space which got created due to
> deletion?
> > >
> > > How do we ensure that future inserts are done in this unused space?
> > >
> > >
> > > [We can not try exp/imp or truncate option
> > > due to the huge size & high activity and
> > > online use of the tables].
> > >
> > > Kind Regards and thanks to all there,
> > >
> > >
> > > Rafi Ahmad
> > >
> > >
> > >
> > > --
> > > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > > --
> > > Author:
> > > INET: rafi_at_vsnl.net
> > >
> > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> > > San Diego, California -- Public Internet access / Mailing Lists
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> > >
> >
> >--
> >Please see the official ORACLE-L FAQ: http://www.orafaq.com
> >--
> >Author: Alex Hillman
> > INET: ahillman_at_erols.com
> >
> >Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Raghu Kota
> INET: raghukota_at_hotmail.com
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Alex Hillman
  INET: ahillman_at_erols.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
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(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: rafi_at_vsnl.net

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
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Received on Mon Mar 12 2001 - 05:01:56 CST

Original text of this message

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