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RE: Table compression

From: Khedr, Waleed <Waleed.Khedr_at_FMR.COM>
Date: Fri, 19 Mar 2004 15:47:34 -0500
Message-ID: <D91D9D5A73FC694BBC52F1EB26AD410F02412076@MSGBOSCLD2WIN.DMN1.FMR.COM>


I use it, works great, 60% savings.

Once the table/partition gets flagged "compress", any direct load will be compressed.

You will get ora-600 if trying to do parallel direct load.

Also can't add a column to a compressed table.

Waleed

-----Original Message-----

From: LeRoy Kemnitz [mailto:lkemnitz_at_uwsa.edu] Sent: Friday, March 19, 2004 3:41 PM
To: Oracle List
Subject: Table compression

I am looking into doing some table compression on my warehouse database to free up some space on the os. I am running 9.2.0.4 on Unix 5.1. The compression is about 2.5:1 on my tables. The documentation says the bulk insert time will be doubled but the single inserts, updates, and deletes are going to be a wash. Does anyone use compression? Are there any problems you notice in the use of it? I have also read that the table will need to be re-compressed after the bulk inserts. Any alternative ideas about getting this done?

Thanks in advance,

LeRoy



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Received on Fri Mar 19 2004 - 14:44:12 CST

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