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Re: Oracle 8i NOLOGGING parameter...

From: Gerry D'Costa <gdcosta_at_cybersurf.net>
Date: 2000/05/08
Message-ID: <EJBR4.223$Tt1.17092@jekyl.ab.tac.net>#1/1

Hi Patrick,

Thanks for the advice, however, unless I'm missing something, I don't see a NOLOGGING option for the INSERT statement. Do you perhaps have more information about NOLOGGING and INSERT statements that I just don't see?

Thanks for all your help...

Gerry D'Costa
Database Administrator
Cybersurf Corporation
www.cybersurf.net
www.3web.net

Patrick Hamou <patrick_hamou_at_hotmail.com> wrote in message news:0VoR4.7830$r37.153503_at_news20.bellglobal.com...
> Hi Gerry,
>
> the problem is that you are trying to disable the logging option for a
 table
> with the NOLOGGING option of the table...
> But the nologging option is there only for the creation of the table not
 for
> all the inserts or deletes on that table,
> if you want to bypass the archive logs, you have to include the NOLOGGING
> clause in each insert statement...
>
> regards,
>
> Patrick Hamou
> Oracle DBA
> Noranda
>
>
> Gerry D'Costa <webmaster_at_cybersurf.net> wrote in message
> news:550Q4.85$Tt1.8790_at_jekyl.ab.tac.net...
> > Hi all,
> >
> > I've got a question about the NOLOGGING parameter that you can attribute
 to
> > tables, tablespaces, and partitions.
> >
> > How do you tell Oracle not to log a particular table?
> >
> > I'm running Oracle 8.1.5 with Partitioning in archive log mode. I've
 just
> > partitioned one of my tables into 12 datafiles ( one for each month )
 and
> > I'm trying to load data into it.
> >
> > The main problem is that in doing this the quantity of archive logs
 starts
> > going through the roof.
> >
> > Oracle documentation says that I can perform a Direct-Load insert in
> > conjunction with turning LOGGING off for a table. So I tried the
 following
> > in PL/SQL: (The "v_" variables are cursor variables)
> >
> > --------------
> > -- Direct LOAD INSERT
> > INSERT /*+ APPEND */ INTO impressions
> > ( custid,
> > adid,
> > impression_date,
> > impression_count,
> > month )
> > VALUES
> > ( v_custid,
> > v_adid,
> > v_impressionDate,
> > v_impressionCount,
> > TO_NUMBER( TO_CHAR( v_impressionDate, 'MM' ) ) );
> >
> > I've also performed the following alter table command...
> >
> > ALTER TABLE impressions NOLOGGING;
> > -------------
> >
> > However, it still produced gigabytes of archive logs, hence lots of redo
> > data.
> >
> > I know that rollback segments transactions are included in the redo data
 so
> > I next issued the following command:
> >
> > ALTER TABLESPACE rollback NOLOGGING;
> >
> > ( the tablespace rollback holds all rollback segments )
> >
> > Still didn't work, I still have archive logs being generated at a
 incredible
> > rate.
> >
> > Am I doing something wrong or am I just overlooking something. Any help
> > would be really appreciated.
> >
> > Thanks
> >
> > Gerry D'Costa
> > Database Administrator
> > Cybersurf Corporation
> > gdcosta_at_cybersurf.net
> > www.cybersurf.net
> > www.3web.net
> >
> >
> >
>
>
Received on Mon May 08 2000 - 00:00:00 CDT

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