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Cindy Burlet

BW Archiving cubes with aggregates

Posted on Mar 12, 2004 at 01:56 PM 14 Views

I've archived data with aggregates and it appears to adjust or rebuilt the aggregate. Can anyone explain how SAP decides which will occur?

BW (SAP Business Warehouse) SAP Customer Relationship Management SAP Business Workflow
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1 Answer

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    Gianfranco Vallese
    Posted on Mar 12, 2004 at 02:18 PM

    Did U take a look to "Pilot" section: there's a good

    Technical Course in Level 2, named ASUG104 - "Data Archiving in SAP Business Warehouse".

    According to the process shown in slide 6 after successfull validation of archived data, delteion takes place. As a consequence aggregates are rebuilt, because otherwise ...

    Hope it helps

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    • Former Member Cindy Burlet
      Mar 25, 2004 at 05:04 AM

      > Depending on the aggregate and cube it could be

      > better to rebuild as opposed to adjust. Does SAP

      > determine which is best?

      During the hierarchy / attribute realignment run BW makes a decision about whether to adjust or rebuild aggregates based on the percentage of rows that require change. The threshold is set using RSCUSTV8.

      Possibly the same threshold applies in archiving? This could be tested by changing the parameter to 0 -- always reconstruct, or 99.