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Compare three columns for duplicates

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Daniellowitz Compare three columns for... 04-08-2015, 09:35 AM
Special-K Re: Compare three columns for... 04-08-2015, 09:51 AM
Daniellowitz Re: Compare three columns for... 04-08-2015, 10:00 AM
azumi Re: Compare three columns for... 04-08-2015, 10:09 AM
Daniellowitz Re: Compare three columns for... 04-09-2015, 03:21 AM
Special-K Re: Compare three columns for... 04-08-2015, 10:07 AM
Daniellowitz Re: Compare three columns for... 04-09-2015, 04:07 AM
Daniellowitz Re: Compare three columns for... 04-09-2015, 08:17 AM
  1. #1
    Forum Expert
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    Re: Compare three columns for duplicates

    Copying into a blank spreadsheet what I've typed in my reply doesnt produce an error for me.
    Copy the formula in my reply and paste it in.

    Perhaps you need semi colons ; instead of commas , as you are in Denmark?
    Regards
    Special-K

    Ensure you describe your problem clearly, I have little time available to solve these problems and do not appreciate numerous changes to them.

  2. #2
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    Re: Compare three columns for duplicates

    Hi again

    I found out that I also need to check for duplicates if only two columns. Column A has 66.000 rows. I thought that this would work, but I get the result 1 on each of the cells

    =IF(OR(NOT(ISNA(VLOOKUP(B1;A$1:A$66000;1;0))));1;0)

    Thanks

    Daniel

  3. #3
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    Re: Compare three columns for duplicates

    nevermind I found a solution.

    Thanks for replies.

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