Re: Way to much log switching!!!
- From: Tim Gorman <tim@xxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 30 Jun 2004 22:12:05 -0600
Use direct-path INSERTs for loading, then use NOLOGGING to reduce redo
generation from that. Then, use RMAN incremental backups to backup the
just-loaded data to make it recoverable. Or not.
If you are unable to use direct-path INSERTs for loading, then something is
wrong with the design of the data warehouse. Non-volatile time-variant data
in partitioned tables is ideally suited for loads using direct-path INSERTs.
In Oracle9iR2, direct-path INSERTs also enable the possibility of using
table compression.
on 6/30/04 2:50 PM, Barbara Baker at barbarabbaker@xxxxxxxxx wrote:
>
> Brings up a question that we are facing.
>
> If we turn on archive logging in our warehouse, we
> generate tons of archive logs during dataloads that we
> probably do not need.
>
> If we do not turn on archive logging, our options for
> using RMAN are less attractive.
>
> What are other sites doing about this dilemma??
>
> Barb
>
>
> --- DENNIS WILLIAMS <DWILLIAMS@xxxxxxxxxxxxx> wrote:
>> Mark
>> Do you mean that you are filling logs every 1-2
>> minutes every hour of the
>> day and night, or is this some type of peak that
>> occurs for a few minutes
>> each day? Some sites operate their ODS in
>> noarchivelogmode. Have you
>> considered that?
>
>
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