Re: Purging database question

How about using partitioning? That way you can keep the production partitions on your fastest devices and have everything available for OLTP while historic portion of the table is moved into read-only partitions. Your data will be 'synched' at all times since it will still logically be one large partitioned table. But physically it will be spread out as much as you need and setting things up to use partition pruning on queries will let you keep good access speed on current reads/writes.

Regards,
Chris Gait

On 14 Nov 2000, at 10:15, Deepak Sharma wrote:

> Yosi,
>
> Yes, we are trying to keep dbs in sync. It's simply
> that we want the production database to be kept
> limited in size (thus purging it periodically), but at
> the same time another database should have all
> production data (and should be in sync - except for
> purged data).
>
> We did use Oracle replication, but the number of txns
> were very high as compared to ones getting pushed. So,
> the queue was always building up, and we had to cancel
> the replication. May be we need to do some tuning.
> But, in the meanwhile I was looking for alternatives.
>
> Thanks,
> Deepak
>
> --- Yosi Greenfield <yosi_at_comhill.com> wrote:
> > Deepak,
> >
> > Didn't really understand your question. Why do you
> > need a tool to purge
> > the data?
> > Sounds like SQLPlus would work. Purge database a,
> > don't purge database b.
> >
> > Unless maybe you mean a tool to keep the dbs in
> > sync, like Oracle
> > Replication.
> > You can use that, and you write procedures to do the
> > purge, and make sure
> > that
> > those aren't replicated. I did something similar for
> > a client and it was
> > pretty
> > complicated, (and it won't be supported by Oracle,)
> > so make sure you want
> > to
> > go there. Then, go get a consultant.
> >
> > hth,
> >
> > Yosi
> >
> > sharmakdeep_at_yahoo.com wrote:
> >
> > > We have database A, which needs to be periodically
> > > purged. But, at the same time we require to have
> > > another database B which contains all records of A
> > > (even the ones purged). Thus, database B should
> > have
> > > everything (ever growing). Can anyone suggest a
> > method
> > > or tool to achieve this ?
> > >
> > > -- Deepak Sharma
> > >
> > > =====
> > > Oracle DBA,
> > > Minneapolis, MN
> > > USA
> > >
> > > __________________________________________________
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> > >
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> > --
> > Thanks,
> >
> > Yosi
> >
> >
> >
> ---------------------------------------------------------
> > Yosi Greenfield
> > Database Architect
> > Comhill Systems, Inc.
> > yosi_at_comhill.com
> >
> >
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> =====
> Oracle DBA,
> Minneapolis, MN
> USA
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Calendar - Get organized for the holidays!
> http://calendar.yahoo.com/
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Deepak Sharma
> INET: sharmakdeep_at_yahoo.com
>
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Received on Fri Nov 17 2000 - 19:02:52 CST