Return-Path: Received: from ensim.rackshack.net (root@localhost) by orafaq.net (8.11.6/8.11.6) with ESMTP id h8PEjI200653 for ; Thu, 25 Sep 2003 09:45:18 -0500 X-ClientAddr: 66.27.56.213 Received: from www2.fatcity.com (rrcs-west-66-27-56-213.biz.rr.com [66.27.56.213]) by ensim.rackshack.net (8.11.6/8.11.6) with ESMTP id h8PEjHc00648 for ; Thu, 25 Sep 2003 09:45:18 -0500 Received: (from root@localhost) by www2.fatcity.com (8.11.6/8.11.6) id h8PC6bQ19005 for oracle-l@orafaq.net; Thu, 25 Sep 2003 05:06:37 -0700 Received: by fatcity.com (05-Jun-2003/v1.0g-b73/bab) via fatcity.com id 005D10B4; Thu, 25 Sep 2003 05:04:46 -0800 Message-ID: Date: Thu, 25 Sep 2003 05:04:46 -0800 To: Multiple recipients of list ORACLE-L X-Comment: Oracle RDBMS Community Forum X-Sender: "Jamadagni, Rajendra" Sender: ml-errors@fatcity.com Reply-To: ORACLE-L@fatcity.com Errors-To: ML-ERRORS@fatcity.com From: "Jamadagni, Rajendra" Subject: RE: Oracle Compress Option Organization: Fat City Network Services, San Diego, California X-ListServer: v1.0g, build 73; ListGuru (c) 1996-2003 Bruce A. Bergman Precedence: bulk Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPartTM-000-76fa6121-b391-401b-a8dc-6b622152d480" ------=_NextPartTM-000-76fa6121-b391-401b-a8dc-6b622152d480 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C3835D.2709CA1E" ------_=_NextPart_001_01C3835D.2709CA1E Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I think 9202 doesn't like to export compressed tables in direct mode = ... so watch out for that ... I implemented, tested and next day reverted back = to regular tables due to this export issue. Disk is cheap. A BAARF party member wannabe !! Raj ------------------------------------------------------------------------= ---- ---- Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art ! -----Original Message----- Sent: Wednesday, September 24, 2003 10:05 PM To: Multiple recipients of list ORACLE-L "Compress to impress?" by Julian Dyke is a good presentation on this=20 topic (see for instance = http://www.ukoug.org/calendar/jan03/jan30ab.htm). I do have the article - 202 K with no compression, 147 K with=20 compression :). Let me know if you're interested, and I'll email it directly to you. Mogens Avnish.Rastogi@providence.org wrote: >Does anybody has any experience with Oracle 9I compression option. I = did some test on 9202 with a table of more 14 million rows. Table has total = 7 indexes. Surprising both table and indexes are using more space after compression. Before compression space used is 13064MB and after = compression 13184MB. In both the cases I did export from source table and stored in = two different tablespaces. Any insight on that and any disadvantages of = using that. > >Thanks ------_=_NextPart_001_01C3835D.2709CA1E Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable RE: Oracle Compress Option

I think 9202 doesn't like to export compressed tables = in direct mode ... so watch out for that ... I implemented, tested and = next day reverted back to regular tables due to this export issue. Disk = is cheap.

A BAARF party member wannabe !!
Raj
---------------------------------------------------------------= -----------------
Rajendra dot Jamadagni at nospamespn dot com
All Views expressed in this email are strictly = personal.
QOTD: Any clod can have facts, having an opinion is = an art !


-----Original Message-----
From: Mogens N=F8rgaard [mailto:mln@miracleas.dk]
Sent: Wednesday, September 24, 2003 10:05 PM
To: Multiple recipients of list ORACLE-L
Subject: Re: Oracle Compress Option


"Compress to impress?" by Julian Dyke is a = good presentation on this
topic (see for instance http://www.ukoug.org/calendar/jan03/jan30ab.htm).<= /FONT>

I do have the article - 202 K with no compression, = 147 K with
compression :).

Let me know if you're interested, and I'll email it = directly to you.

Mogens

Avnish.Rastogi@providence.org wrote:

>Does anybody has any experience with Oracle 9I = compression option. I did some test on 9202 with a table of more 14 = million rows. Table has total 7 indexes. Surprising both table and = indexes are using more space after compression. Before compression = space used is 13064MB and after compression 13184MB. In both the cases = I did export from source table and stored in two different tablespaces. = Any insight on that and any disadvantages of using that.

>
>Thanks

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