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No duplicate Data

  1. #1
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    No duplicate Data

    PLease i need your help on this prob...
    Attached is the picture of my data sheet...tnx...
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    Last edited by Haroldski; 09-24-2012 at 10:23 AM.

  2. #2
    Forum Expert Pepe Le Mokko's Avatar
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    Re: No duplicate Data

    Post a sheet instead of a picture pasted in Word

  3. #3
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    Re: No duplicate Data

    You can you excel's built in function. Highlight the 2 columns, then Click on the Data tab>Remove Duplicates. There a checkboxes to check if your data has headers. In the listbox select the 2 columns that have the dupes.
    Thanks,
    Mike

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    Re: No duplicate Data

    Tnx mike7952, but i want a condition that will just notify me if two data are havig exactly the same in the two columns... and i will have also the option to input or NOT to input the same data again...

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    Re: No duplicate Data

    Please guys I badly need your help in this matter...

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    Re: No duplicate Data

    Are you using 2003?

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    Re: No duplicate Data

    NOPE, im using excel 2007

  8. #8
    Forum Expert Fotis1991's Avatar
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    Re: No duplicate Data

    Try in D2 and copy down.

    =IF(SUMPRODUCT(($B$2:$B$24=B2)*($C$2:$C$24=C2))>1,"Alarm","")
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  9. #9
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    Re: No duplicate Data

    Put this in column C and drag down.

    Formula: copy to clipboard
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    Re: No duplicate Data

    Yah it works... Tnx
    Can i used it it DATA VALIDATION>CUSTOM

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    Re: No duplicate Data

    Hi Haroldski,
    Do you want to delete the duplicate or highlight them so you can Identify them?

  12. #12
    Forum Expert Fotis1991's Avatar
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    Re: No duplicate Data

    In range C2:C24, IN custom validation rule, put this.


    =SUMPRODUCT(($B$2:$B3=B2)*($C$2:$C3=C2)*($C$2:$C3>0))<2

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    Re: No duplicate Data

    I want to be notify if the condition are met, but i have the option if i will continue to input the data or not...

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    Re: No duplicate Data

    Sir fotis1991 perfectly done, you save my job....LOL
    If it will not abuse your kindness, how can i also highlights the last data that are been duplicated?

  15. #15
    Forum Expert Fotis1991's Avatar
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    Re: No duplicate Data

    Then you can not use Custom Validation.

    Use my formula in column C, or use Conditional format to change color if condition met.

  16. #16
    Forum Expert Fotis1991's Avatar
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    Re: No duplicate Data

    In Conditional format rules, put this formula.

    =SUMPRODUCT(($B$2:$B3=$B2)*($C$2:$C3=$C2)*($C$2:$C3>0))>1

    Choose range and color.

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    Re: No duplicate Data

    Ok tnx sir fotis1991...

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    Re: No duplicate Data

    Sir fotis1991
    =IF(SUMPRODUCT(($B$2:$B$24=B2)*($C$2:$C$24=C2))>1,"Alarm","")
    regarding the above formula how about putting a blank instead an "ALARM" in a blank cell?

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    Re: No duplicate Data

    Can i combined conditional formatting and data validation?

  20. #20
    Forum Expert Fotis1991's Avatar
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    Re: No duplicate Data

    If the condition is met, then we use "ALARM" OR anything else you like. If the condition is not met then cell is empty.Look formula in column C.

    Take a look to the example.
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  21. #21
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    Re: No duplicate Data

    Quote Originally Posted by Haroldski View Post
    Can i combined conditional formatting and data validation?
    Yes you can.

  22. #22
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    Re: No duplicate Data

    Ah ok, but i need also to highlight the cell C3 and B3 in your sample sheet... for easy reference of the duplicate data...

  23. #23
    Forum Expert Fotis1991's Avatar
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    Re: No duplicate Data

    In Conditional Formatting rules, put this formula.

    =SUMPRODUCT(($B$2:$B$24=$B2)*($C$2:$C$24=$C2)*($C$2:$C$24>0))>1

  24. #24
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    Re: (SOLVED by FOTIS1991) No duplicate Data

    Once again thanks very much!!!!

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