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T-Sql Query

  • May 30, 2014 at 1:09 pm

    #1717929

    ramana3327 (5/29/2014)

    What I understand is that, we have to put all the values from the left table to the table variable, first. Then we have to UPDATE the table variable with the right table values. Then select from the table variable..

    An insert and update (with joins) and a select to replace a select. Does that sound like an efficient option?

    You still haven't answered the question. Are the left joins a problem (not does someone say they are)? Have you tested and determined that the LEFT keyword is causing such major performance problems?

    If you haven't, you're wasting your time looking for a solution to what may well not be a problem

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass

  • May 30, 2014 at 4:05 pm

    #1717972

    I haven't tested yet. But there are some temp tables in the SP. It is also causing for recompile

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