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Thread: Sort-merge join???

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  1. 03-31-2007, 12:45 PM #1
    janki_mehta
    janki_mehta is offline Junior Member
    Join Date
    Feb 2007
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    Sort-merge join???

    Which of the following queries will mostly likely require a sort-merge join?
    Why???

    A. Two-table equijoin with no indexes
    B. Two tables equijoin with one index
    C. Two-table equijoin in which both tables are indexed on the join column

    In which case nested loop join is used?
    Last edited by janki_mehta; 03-31-2007 at 12:47 PM.
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