Re: Lookup/Code table as hot block

But then you have to manually keep application in sync with table - no good.

Current idea is ( on app side ) to read it once at the beggining of the session, cache into array and use from there - so buffer cache is not used any more, just UGA ( as Tanel suggested ).

Regards, Ranko

On 4/21/06, Ranko Mosic <ranko.mosic_at_gmail.com> wrote:
>
> That's the idea actually. Those 3 rows should stay away from Oracle.
> Thanks Alex.
>
>
> On 4/21/06, Alex Gorbachev <gorbyx_at_gmail.com> wrote:
> >
> > Why don't you cache 3 rows in the application? You would avoid all
> > kind of problems with concurrent access then.
> >
> > 2006/4/20, Ranko Mosic <ranko.mosic_at_gmail.com>:
> > >
> > > Thanks all for their responses. I apologize for not having more detail
> > -
> > > this is yet another
> > > 4 pm issue. Version is 9.2.0.x. This table has only 3 ( three ) rows,
> > so any
> > > points relating to pk/indexes/IOT etc don't apply here.
> > > Why is this bad thing ? I don't know, I asked client the same
> > question, but
> > > they seem sure
> > > they are seeing problem. I didn't have chance yet to have direct look
> > at the
> > > problem.
> > > Caching is current idea and also suggested by Oracle Consulting.
> > > I am not sure how much it will help though - block is cached anyway,
> > so
> > > buffer cache latch will be replaced with shared pool latch. Spreading
> > > accross 3 blocks is also considered.
> >
> >
> > --
> > Best regards,
> > Alex Gorbachev
> >
>
>
>
> --
> Regards,
> Ranko Mosic
> Contract Senior Oracle DBA
> B. Eng, Oracle 10g, 9i Certified Database Professional
> Phone: 416-450-2785
> email: mosicr_at_rogers.com
>
> http://ca.geocities.com/mosicr@rogers.com/ContractSeniorOracleDBARankoMosicMain.html
>

--
Regards,
Ranko Mosic
Contract Senior Oracle DBA
B. Eng, Oracle 10g, 9i Certified Database Professional
Phone: 416-450-2785
email: mosicr_at_rogers.com
http://ca.geocities.com/mosicr@rogers.com/ContractSeniorOracleDBARankoMosicMain.html

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