Re: Locally managed tablespaces

That's kind of the point -- in an LMT the free space is managed by bitmap. If it's contiguous in the bitmap it's contiguous, so if you free two adjacent blocks then they're already coalesced, nothing for SMON to do. That's their advantage -- no overhead for coalesce and no overhead for creating dictionary rows to manage free space.

Saurabh Sharma wrote:

> consider this also..
> if u make a tablespace as LMT, the SMON process is not going to coalesce it
> automatically..
> as it in the case of dictionary managed TS.
>
> if i'm wrong.. pls correct.
>
> Saurabh Sharma
>
> saurabh00pc_at_yahoo.com
> http://www.geocities.com/saurabh00pc/stride.html
>
> ----- Original Message -----
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Sent: Friday, July 20, 2001 5:16 AM
>
> > Yes, you can make any tablespace a locally-managed tablespace except
> SYSTEM.
> > What they're saying, I think, is that you can't set up temporary
> tablespaces
> > and shouldn't set up rollback segments with the AUTOALLOCATE allocation
> > management.
> >
> > Jon Walthour
> >
> > ----- Original Message -----
> > To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> > Sent: Thursday, July 19, 2001 4:32 PM
> >
> >
> > > I was pretty sure you could use it for any TS but SYSTEM. Is this
> > documented?
> > >
> > > Cheers,
> > >
> > > Earl
> > >
> > > ---
> > >
> > > TheOracleDBA
> > > theoracledba_at_lycos.com
> > >
> > >
> > >
> > > On Thu, 19 Jul 2001 09:32:27
> > > Hillman, Alex wrote:
> > > >You canuse any storage parameters you like but oracle will ignore them
> > exept
> > > >for initial for LMT with autoallocate. I would personally do not use
> > > >autoallocate. Also you cannot use autoallocate for temporary tablespace
> > and
> > > >shouldn't use it for rollback.
> > > >
> > > >Alex Hillman
> > > >
> > > >-----Original Message-----
> > > >Sent: Thursday, July 19, 2001 12:43 PM
> > > >To: Multiple recipients of list ORACLE-L
> > > >
> > > >
> > > >HPUX 11i 64 bit
> > > >Oracle 8.1.7.1 32 bit
> > > >
> > > >I am creating a new database and decided to go with locally managed
> > > >tablespaces. I was going to go with autoallocate because the best I
> can
> > > >tell the only possible drawback with this is a little wasted space.
> > > >However, I was under the impression that you could not specify a next
> in
> > the
> > > >storage clause of a table creation. Yet you can. So what happens if I
> > have
> > > >a next defined? Do they pretty much just throw that away or should I
> > really
> > > >not define it?
> > > >
> > > >
> > > >
> > > >________________________________
> > > >Kimberly Smith
> > > >Database Administrator
> > > >IT Dept. - Fujitsu/GMD
> > > >Phone: (503) 669-6050
> > > >Fax : (503) 669-5705
> > > >Email : kimberly.smith_at_gmd.fujitsu.com
> > > >
> > > >--
> > > >Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > > >--
> > > >Author: Kimberly Smith
> > > > INET: kimberly.smith_at_gmd.fujitsu.com
> > > >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Saurabh Sharma
> INET: ssharma1_at_fcsltd.com
>
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Received on Fri Jul 20 2001 - 07:26:53 CDT