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Home -> Community -> Mailing Lists -> Oracle-L -> RE: SPACE FREE HOW?
24x7... that does make it tough.. you might want to try LiveReorg from Quest Software... it allows you to reorganize those tables while users are still accessing them. It will even tell you which tables to reorg to free up the most space... without even deleting data.
you can find out info about the products at www.quest.com/livereorg
you can even get a free trial version to test it out, and make sure it is what you need.
Nick
-----Original Message-----
From: Seema Singh [mailto:oracledbam_at_hotmail.com]
Sent: Friday, January 18, 2002 7:41 AM
To: Multiple recipients of list ORACLE-L
Subject: RE: SPACE FREE HOW?
Ethan
The database is in production and users are accesing 24x7.What will be best
approach to do?
DO u have any scripts how to find HWM?
Thanks
-Seema
>From: "Post, Ethan" <Ethan.Post_at_ps.net>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: RE: SPACE FREE HOW?
>Date: Thu, 17 Jan 2002 14:25:37 -0800
>
>Deleting records from a table does not free up space in the database.
>Search for high water mark in the concepts manual and you should find an
>explanation of how this works. The statement below only frees up space
>above the high water mark on the table.
>
>You can...
>
>create table foo nologging as (select * from big_table);
>
>truncate table big_table;
>
>insert into big_table (select * from foo);
>
>drop table foo;
>
>
>-Ethan
>
>-----Original Message-----
>Sent: Thursday, January 17, 2002 3:27 PM
>To: Multiple recipients of list ORACLE-L
>
>
>ALTER TABLE table DEALLOCATE UNUSED KEEP integer;
>the keep clause is optional.
>
>-sunil
>
>-----Original Message-----
>Sent: Thursday, January 17, 2002 2:58 PM
>To: Multiple recipients of list ORACLE-L
>
>
>Hi
>I deleted millions of rows from diffrent tables and I have not seen any
>impact on database size.What I have to do to get that free space?
>Is it necessary to shutdown the database?
>Thx
>-Seema
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Post, Ethan
> INET: Ethan.Post_at_ps.net
>
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Seema Singh INET: oracledbam_at_hotmail.com 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 the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Fri Jan 18 2002 - 13:58:34 CST
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