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Delete duplicate rows

  • September 21, 2011 at 12:10 pm

    #248344

    I have a table, EMP.

    EMP

    -----

    Empid EmpName City nuumber

    ------------------------------------------------

    1 rahul noida 321

    2 abhi noida 987

    3 dippy noida 123

    4 tom noida

    1 rahul 321

    Now I want to delete duplicate rows which have same empid but have less data in their columns than the other one.

  • September 21, 2011 at 12:26 pm

    #1384731

    Depending on what you consider as "less data" you could use

    ROW_NUMBER() OVER (PARTITION BY Empid ORDER BY EmpName desc, City desc, nuumber desc)


    Lutz
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