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Compare values in 2 columns and populate another column with the results

Posted on 2011-02-16
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Last Modified: 2012-05-11
Hello Everyone,

I have an excel spreadsheet that I need to compare two columns of text to find values that match then populate another column with the results.

My first column (A) has 94,000 rows of data.  I have to compare that to my second column (J) that has about 30,000 rows.  For values that match I have to populate another column (B) with a "yes" if there is a match.  

Is there a macro that can do this for me?
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Question by:cyardley
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12 Comments
 
LVL 11

Expert Comment

by:Runrigger
ID: 34906633
if(A1 = B1,"Yes","No") - provided that the values to compare are in the same row!

alternative if 2 lists;

if(iserror(vlookup(a1,$b$1:$b$30000,1,false)),"No","Yes")
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LVL 11

Expert Comment

by:Runrigger
ID: 34906641
the vlookup simply attempts to determine if the value in column A is contained (exactly) within the list in column B
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LVL 33

Expert Comment

by:jppinto
ID: 34906649
Use this formula on column C if you data is on columns A and B:

=IF(ISNA(VLOOKUP(B1;A:A,1,FALSE)),"","Yes")

jppinto
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LVL 33

Expert Comment

by:jppinto
ID: 34906680
Please check the attached example...

jppinto
VLOOKUP.xlsx
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LVL 11

Accepted Solution

by:
Runrigger earned 500 total points
ID: 34906684
actually, we both read this wrong;

=if(iserror(vlookup(A1,$J$1:$J$30000,1,false)),"No","Yes")

To re-iterate, this is confirming that the value in column is listed in column J, correct?
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LVL 11

Expert Comment

by:Runrigger
ID: 34906693
To re-iterate, this is confirming that the value in column is listed in column J, correct?

--->>>>> shoudl have been

To re-iterate, this is confirming that the value in column A is listed in column J, correct?
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Author Closing Comment

by:cyardley
ID: 34906745
Thank You Runrigger!  I should have realized that a vlookup would have worked.
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LVL 33

Expert Comment

by:jppinto
ID: 34906859
Did you at least looked at my posts??!
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LVL 11

Expert Comment

by:Runrigger
ID: 34906919
jppinto, I believe that your lookup was the wrong way around!
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LVL 33

Expert Comment

by:jppinto
ID: 34906935
You're right... :) I missed that! LOLOL
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Author Comment

by:cyardley
ID: 34906966
Hi jppinto,

I did and runrigger is correct it was the wrong way around.  I think I may have caused that confusion with my wording.  I really do appreciate your quick response and value this site and all of the people on here that have helped me.  Again my apologies if there was any confusion.

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LVL 33

Expert Comment

by:jppinto
ID: 34907048
No problem...I misread the question. Maybe next time... :)
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