On a datawarehouse project, I've put each partition of
the fact tables in their own tablespaces.
It eases maintenance, performance, backup,.....
- "A. Bardeen" <abardeen1_at_yahoo.com> a écrit : > And
what, pray tell, is one of the common
> implementations of a partitioned table, but to put
> each partition into its own tablespace?
>
> I agree that it would be pretty foolish in an OLTP
> db
> which is likely to have thousands of tables (ever
> worked with a BAAN db?!), but for DSS environments
> with a small number of very large tables this
> doesn't
> seem so foolish, especially if running Oracle7 where
> partitioned tables aren't available.
>
> Just playing devil's advocate ;)
>
> -- Anita
>
> --- Stephen Dance <steved_at_capbankcf.co.uk> wrote:
> > I agree that putting every table in its own Tspace
> > is a pretty Dilbert
> > thing to do.
> >
> > However, we run Peoplesoft and had I the disk
> > spindles available, there
> > are at least a dozen or so of the most heavily hit
> > tables which I would
> > cheerfully put individually on their own Tspace on
> > their own spindle.
> >
> > Sometimes when I see the disk activity on the RAID
> > subsystem I think it
> > might go into meltdown.
> >
> > >----------
> > >From: dgoulet_at_vicr.com[SMTP:dgoulet_at_vicr.com]
> > >Sent: May 12 2000 15:48
> > >To: Multiple recipients of list ORACLE-L
> > >Subject: Re:TSPITR and one table per tablespace
> > >
> > >Kapil,
> > >
> > > I'm sure that some of the list members will
> > disagree with me, but that is
> > >one of the most Dilbert ideas I've heard since
> the
> > VARCHAR2(255) idea.
> > >Assuming
> > >you implement such an idea, consider that each
> > tablespace MUST consist of at
> > >least one file and that files CANNOT be shared
> > across tablespaces. That
> > >means
> > >that you need one data file for each table. Now
> > the question becomes, how
> > >many
> > >tables do you have and how many files will the OS
> > let you have open at one
> > >time?? The former will be larger that the latter
> > in a short time.
> > >Personally I
> > >like isolating one application to one tablespace
> as
> > a minimum. That way, if
> > >I
> > >have to recover a tablespace then at least that
> > application should be
> > >consistent
> > >when I'm done. Consider our PeopleSoft
> application
> > with more than 2000
> > >tables???
> > >
> > >Sheesh, what did you buy? A sophisticated RDBMS
> or
> > a very expensive file
> > >manager??
> > >
> > >Dick Goulet
> > >Senior Oracle DBA
> > >Vicor Corporation
> > >
> > >
> > --
> > Author: Stephen Dance
> > INET: steved_at_capbankcf.co.uk
> >
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> __________________________________________________
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> --
> Author: A. Bardeen
> INET: abardeen1_at_yahoo.com
>
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Stephane Paquette
DBA Oracle
stephane_paquette_at_yahoo.com
spaquette_at_houra.fr
(33) 01 53 93 06 50
Received on Mon May 15 2000 - 01:33:41 CDT
