Well I was sure about it until you had the temerity to question me :) I think we agree on extents sizes not being changed after the event so it is now a discussion on whether changes to a pctfree/pctused are retrospective.
I contend that if a table is fully loaded upto its pctfree/pctused limits and there are no available blocks on the freelist then by changing the pctfree/pctused values no additional blocks will suddenly appear on the freelist. I do agree however that if a block is amended by having a row deleted or a row updated then the new values come into play and the blockcould then be available on the freelist. I think I am correct on this but as with anything I am always ready to be proved wrong - it has happened before and wil lhappen may times in the future John -----Original Message----- Sent: 24 September 2002 15:47 To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Are you sure about that John? On Tuesday 24 September 2002 04:28, [EMAIL PROTECTED] wrote: > No, it is not retrospective. > You are setting parameters to be used when the next extent is created. > A better example is when setting next extent size to be different than the > existing extent size (dictionary managed tablespaces only). > It does not alter all the existing extents it only works on the next one > that is created. > > HTH > > John > > -----Original Message----- > Sent: 24 September 2002 10:58 > To: Multiple recipients of list ORACLE-L > > > > Is the effect of modifying PCTFREE/PCTUSED immediate ? > > > If I do an "ALTER TABLE <tablename> PCTFREE 99 PCTUSED1", > does this take effect immediately, even for existing blocks. > [If so, existing blocks would not get new rows inserted]. > Or is it effective only in new Extents ? In that case, > existing blocks in existing Extents still use the old > PCTFREE/PCTUSED parameters and keep re-entering the > FreeList. > > Hemant K Chitale > http://hkchital.tripod.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
