Home Forums SQL Server 2008 SQL Server 2008 - General Query plan - largest cost RE: Query plan - largest cost

  • September 16, 2012 at 8:19 pm

    #1538380

    rgtft (9/16/2012)

    The two biggest costs in the query plan are both index seeks (one clustered and the other non-clustered). The third largest cost is an index scan on dbo.tblJob.

    There's really only one way for the seeks to be taking longer than a scan... the seeks are being repeated. Look at the properties of the seeks and see that they are executed many times. A better index capable of doing an initial seek and a "range scan" following that would be a tremendous amount faster.

    --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
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