Re: decrease initial extent

Thanks to all who replied.

Alter table/index deallocate keep 64k worked like a charm. I did not checked it in depth but I think that it keep 64k from the actual end of the data, not the high water mark.

When I read the manual about keep nk I was sure that it means above the high water mark.

Yechiel Adar
Mehish
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Thursday, December 04, 2003 12:19 AM

> I don't understand. Here is what manual says:
>
> deallocate_unused_clause
>
> Use the deallocate_unused_clause to explicitly deallocate unused space at
the end of the table,
> partition or subpartition, overflow data segment, LOB data segment, or LOB
index and make the
> space available for other segments in the tablespace.
>
> It's not supposed to change the characteristics of the initial extent.
Funny. I'll test it
> at home.
>
>
> On 12/03/2003 04:44:27 PM, nelson.petersen_at_homehardware.ca wrote:
> > Since I agreed with Mladen that it wouldn't work, I just had to test
this.
> >
> > On 8.1.7.3 on OpenVMS the "deallocate unused keep # " shrinks the
initial
> > extent.
> > It shrank a test table from 1m to 8k. I'm not sure why it chose 8k.
> > (db_block_size=4k, default initial_extent for the tablespace=64k)
> >
> > I assume it would work on SYS tables as well.
> > (No sacrificial database that I'm willing to try it on.)
> >
> > Nelson
> >
> > -----Original Message-----
> > [mailto:Alexander.Feinstein_at_mitchell1.com]
> > Sent: Wednesday, December 03, 2003 4:09 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> >
> > If you use "keep <int>" it will.
> >
> > Alex.
> >
> >
> > -----Original Message-----
> > <mailto:mladen_at_wangtrading.com> ]
> > Sent: Wednesday, December 03, 2003 12:59 PM
> > To: Multiple recipients of list ORACLE-L
> >
> >
> > That will not do anything for the initial extent.
> > You may try with
> >
> > alter table <table> pray intensely for the desired change;
> >
> >
> > On 12/03/2003 03:34:25 PM, Alexander.Feinstein_at_mitchell1.com wrote:
> > > alter table <tbl_name> deallocate unused keep 1;
> > >
> > > Alex.
> > >
> > >
> > > -----Original Message-----
> > > Sent: Wednesday, December 03, 2003 10:09 AM
> > > To: Multiple recipients of list ORACLE-L
> > >
> > >
> > > Is there any way to decrease the initial extent allocated to a table.
> > > It is one of the system tables, so I do not want to drop and recreate
> > > it. I can not export/import as it appear in noexp$. It has long field
> > > so I can not do alter table move.
> > >
> > > Yechiel Adar
> > > Mehish
> > > --
> > > Please see the official ORACLE-L FAQ: http://www.orafaq.net
> > <http://www.orafaq.net>
> > > --
> > > Author: Yechiel Adar
> > > INET: adar76_at_inter.net.il
> > >
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> > Mladen Gogala
> > Oracle DBA
> >
> >
> >
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> Mladen Gogala
> Oracle DBA
>
>
>
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> --
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> Author: Mladen Gogala
> INET: mladen_at_wangtrading.com
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Yechiel Adar
  INET: adar76_at_inter.net.il

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