Get rid of error message 'An item with the same key has already been added'.

  • Hi

    I was wondering if someone could shed some light as to what this error message means in SSRS 'An item with the same key has already been added'.

    I believe that the error message relates to this section of the store procedure( i could be wrong) but i don't seem to have any problem otherwise

    SELECT H.Item

    , H.Company

    , H.Division

    , H.Corporation

    , H.Sold

    , H.Department

    , H.ShipTo

    , H.Hist1

    , H.Hist2

    , H.Hist3

    , H.Hist4

    , H.Hist5

    , H.Hist6

    , H.Hist7

    , H.Hist8

    , H.Hist9

    , H.Hist10

    , H.Hist11

    , H.Hist12

    , M10.Item

    , M10.May10_Ad1

    , M10.May10_Ad2

    , M10.May10_Ad3

    , M10.May10_Ad4

    , M10.May10_Ad4

    , M10.May10_Ad5

    , M10.May10_Ad6

    , M10.May10_Ad7

    , M10.May10_Ad8

    , M10.May10_Ad9

    , M10.May10_Ad10

    , M10.May10_Ad11

    , M10.May10_Ad12

    FROM #History H INNER JOIN

    #FcstMay10 M10

    ON H.Item = M10.Item

    If you need more information please let me know

    __________________________________________________________________________________
    Steve J
    Jnr Developer
    BSc(Hon)

  • Try this 🙂

    ______________________________________________________________________

    Personal Motto: Why push the envelope when you can just open it?

    If you follow the direction given HERE[/url] you'll likely increase the number and quality of responses you get to your question.

    Jason L. Selburg
  • I've done the google search and i understand that SSRS only uses the column names as a key not the table + column names. I've changed it to the following but still getting the same error message

    SELECT --H.ItemH

    H.Company

    , H.Division

    , H.Corporation

    , H.Sold

    , H.Department

    , H.ShipTo

    , H.Hist1

    , H.Hist2

    , H.Hist3

    , H.Hist4

    , H.Hist5

    , H.Hist6

    , H.Hist7

    , H.Hist8

    , H.Hist9

    , H.Hist10

    , H.Hist11

    , H.Hist12

    , M10.May10_Ad1

    , M10.May10_Ad2

    , M10.May10_Ad3

    , M10.May10_Ad4

    , M10.May10_Ad4

    , M10.May10_Ad5

    , M10.May10_Ad6

    , M10.May10_Ad7

    , M10.May10_Ad8

    , M10.May10_Ad9

    , M10.May10_Ad10

    , M10.May10_Ad11

    , M10.May10_Ad12

    FROM #History H INNER JOIN

    #FcstMay10 M10

    ON H.ItemH = M10.ItemM

    __________________________________________________________________________________
    Steve J
    Jnr Developer
    BSc(Hon)

  • M10.May10_Ad4 is repeated twice?

    ______________________________________________________________________

    Personal Motto: Why push the envelope when you can just open it?

    If you follow the direction given HERE[/url] you'll likely increase the number and quality of responses you get to your question.

    Jason L. Selburg
  • Your right didn't spot that one works perfectly thanks

    __________________________________________________________________________________
    Steve J
    Jnr Developer
    BSc(Hon)

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