RE: Re-claiming the space from Table after deleteion

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

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