Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Mailing Lists -> Oracle-L -> Re: Delete vs. truncate to free up spaces.

Re: Delete vs. truncate to free up spaces.

From: Ryan <ryan_oracle_at_cox.net>
Date: Mon, 22 Dec 2003 14:54:27 -0800
Message-ID: <F001.005DAA90.20031222145427@fatcity.com>


you can also do the following:

  1. create table as and copy just the records you want to keep.
  2. Drop the old table
  3. rename new table to old table
  4. re-create the indexes. if there are alot, issue them as jobs and do it at the same time.
    • Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Monday, December 22, 2003 5:44 PM

> This is one of the cases where a partitioned table can be of great use.
What version of Oracle? Standard or Enterprise Edition?
> With a partitioned table you can say
> alter table ... drop partition ... ;
> to easily get rid of a large chunk of data and release the space.
>
> See
> Oracle9i Database Concepts Release 2 (9.2)
> Part Number A96524-01
> Chapter 11
> Partitioned Tables and Indexes
>

http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96524/c12parti .htm#464767
>
> or
>
> http://tinyurl.com/362ba
>
>
> -----Original Message-----
> Nguyen, David M
>
> I am using delete command to delete million records in several tables to
free up space in tablespace. I understand delete command does not release unused spaces as truncate command but I could not use truncate to delete ALL records in table as I need to keep one month old of records in table. Please advise a better method I can use to free up spaces.
> Thanks,
> David
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Jacques Kilchoer
> INET: Jacques.Kilchoer_at_quest.com
>
> Fat City Network Services -- 858-538-5051 http://www.fatcity.com
> San Diego, California -- Mailing list and web hosting services
> ---------------------------------------------------------------------
> 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).

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

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
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 Mon Dec 22 2003 - 16:54:27 CST

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US