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Select OrderID in

  • February 22, 2016 at 7:24 am

    #308656

    I tested two sentences as below.

    OrderID is integer.

    Two sentences got the same result.

    Which one is better?

    Select * from Order where OrderID in ('1','5','29')

    Select * from Order where OrderID in (1,5,29)

  • February 22, 2016 at 7:26 am

    #1860082

    The first one forces a data type conversion before SQL can compare. The second does not.

    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

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