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RE: Any dangers when changing pctfree etc on live system ?

From: Steve Adams <steve.adams_at_ixora.com.au>
Date: Thu, 2 Nov 2000 09:37:56 +1000
Message-Id: <10667.120881@fatcity.com>


Hi Ron,

A minor correction: The new PCTFREE value will also be effective for any blocks currently on a freelist, or subsequently placed on a freelist (by virtue of falling below PCTUSED).

@   Regards,
@   Steve Adams
@   http://www.ixora.com.au/
@   http://www.christianity.net.au/

-----Original Message-----
From: Ron Rogers [mailto:RROGERS_at_galottery.org] Sent: Thursday, 2 November 2000 7:27
To: Multiple recipients of list ORACLE-L Subject: Re: Any dangers when changing pctfree etc on live system ?

Steve,
  When you change the pctfree on a table it only effects the new blocks of data added to the table. The old blocks still maintain the old setting. To eliminate the old block setting you should save the data and recreate the table with the new settings and reload the data.
ROR ª¿ª
>>> Steve.Parker_at_lis.co.uk 11/01/00 12:46PM >>>
List,

A fellow DBA has asked if it is completely safe to change the pctfree values etc on a live
system.

I thought there shouldn't be any isues as no data is actually being changed only
the default storage parameters that will be used when new blocks are created.

Any experience, gotchas etc appreciated

Steve Parker
Technical Consultant
LIS



Logistics & Internet Systems Ltd.
United Kingdom
E Mail: steve.parker_at_lis.co.uk
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Received on Wed Nov 01 2000 - 17:37:56 CST

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