Home Forums Article Discussions Article Discussions by Author Discuss content posted by Raghavendra Narayana Parallel Processing of Large Volume ETL Jobs RE: Parallel Processing of Large Volume ETL Jobs

  • November 8, 2007 at 10:15 pm

    #749706

    RAGHAVENDRA NARAYANA (11/8/2007)

    Large volume means number of rows and data size of source(s) that need to be processed into the target system by applying good amount of complex validation/filtration/transformation logics. The "Number of rows" and "good amount of" in the previous sentence depends on the hardware capacity and availability of ETL time window of individual systems. Before considering the idea discussed in article, study need to be done on the project for facts like current/future hardware capacity, how much data parallelism can be applied with current hardware, current/future available time window for etl processing, future complexities in validation logics, etc.

    C'mon... How many rows and columns per row are you talking about?

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

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    How to post code problems
    How to Post Performance Problems
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