Flag Duplicates Across Columns
Nov 29, 2006
sorting duplicate e-mails across three columns in an Excel spreadsheet.
Precisely, I have three mailing lists (Column A, B, and C) that I would like to sort.
I would like to know what e-mail addresses appear in more than one Column (Mailing List), and I would like to highlight/flag them somehow.
I have attached an example spreadhseet that contains fake e-mail addresses for test purposes. As you can see, some e-mail addresses are duplicated or in triplicate across the 3 Columns. In other cases, an e-mail address may be unique to a specific Column.
In my real spreadsheet, I have approximately 3,500 rows and 3 columns.
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Nov 14, 2013
Columns A, B, and C have data (first name, last name, state) - 125k rows. Columns F, G, and H have data (first name, last name, state) - 5k rows. Some of these individuals are bound to appear on both lists, and I need to know which ones are indeed on both lists. So in other words, let's say I've got "John" "Doe" "TX" in cells F1, G1, and H1, respectively. I want to search through columns A, B, and C to find out if there are any instances in those columns of "John" "Doe" "TX" in the same row.
I'm thinking there will be multiple VLOOKUP formulas involved, but I could be way off.
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Jun 12, 2014
I am using a CountIf formula to flag duplicate entries in a column of data, in a Column I have "=COUNTIF(P:P,P1)" It returns a number equal to the number of repeats of the data in call "P1". I then sort by that column to isolate all rows which have duplicates in Column "P". The cell has "1" if there are no repeats, "2" if there is one repeat, "3" if there are two repeats, etc. What I would like is a formula which would put a "1" in the cell the first time it sees data, then something else when it sees repeats. That way when I sort, ALL the repeats will be together and can be deleted. Is that possible?
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Jun 23, 2006
I have an Excel spreadsheet with 3 columns (A, B, and C) and 600 rows. Each cell in A and B contains a 6-diget number. Column C is empty.
I want to determine whether the number in A1, A2, ….A600 appears anywhere in column B. If A(n) does appear in column B then I want to enter a symbol (say a Y) in C(n). If A(n) does not appear in column B then I want to enter a different symbol (say N) in C(n).
What is the formula I enter (and where) that will do that?
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Jan 8, 2007
I have many small spreadsheets of data organised into 4 columns and anything upto 250 rows. I want to be able to test if all the cells along each row have the same data in each of the 4 cells, so 4 occurences of the same thing. Each row of data will be different. (I'm not intertested in matching the data going down the column).
However, I won't know with each spreadsheet what is the exact data I will be looking for - if all 4 cells don't have the same data, that is fine as this will then require my manual attention which is the purpose of my project.
I just want to avoid having to check through lots of rows of data where all the data does already match.
The data will usually be text but it can be IP addresses and numbers too. I need a formula or set of operators to use for is exercise.
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May 9, 2012
How do I compare 2 columns and then flag where there is duplication? I want to compare Column B against column C and then flag everywhere there is a match. In this case, Column B may have several thousands of entries (inclusive off all entries found in Column C) and I want to have Excel look through the thousands of entries in Column B and then just place an "x" where there was a match to the values found In Column C. For example:
Excel 2003ABC1Duplicate?MarchApril27899421458347889122254x21458112575445576332147x122258x11257921463Sheet1
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Aug 16, 2008
I'm glad founding this great forum. I have learned a lot in the last few months.
Now I need to do a task and can't find online a tutorial for this. Here is what I need:
File A contains 23 columns with info for 300 products (rows). File B contains same columns for 280 out of the 300 products from file A, plus 40 new products.
I need to flag in file A the 20 products that are not in the file B, plus flag in file B the 40 products that are not in the file A.
The structure, columns, etc are the same for both files.
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Oct 16, 2008
Ideally I'm looking for a way to do this with formula's but for the life of me I just can't think of one. Attached is a sample that explains what I'm trying to achieve.
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Feb 21, 2009
what I'm after is a macro to check the contents of Column 'A' against column 'B' and display any duplicates in Columns 'C' & 'D'.
N.B. The headings of Columns C & D are :-
C = Value Found in Column A
D = Value Found in Column B
Any duplicate entries logged in columns C & D should be listed in C2,C3,C4....C20 and D2,D3,D4......D20 etc (in effect creating two new lists)
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Sep 27, 2011
I have two columns of data, I and M and need to find the cases where duplicates occure in I but the data in M does not match. If the data in M matches then it's ok. I have column I sorted A to Z.
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Feb 21, 2009
I have a list of numbers in column A of my Worksheet, and a list of names in column B.
There are duplicates in both columns:
A B
234 John Smith
253 Charles White
461 Mary Carlsson
876 Erica Alvin
954 Joe Brown
234 John Smith
461 Mary Carlsson
The duplicates in column A and in column B are correct, because the same names correspond to the same numbers. I would like a formula or VBA macro, if possible, to detect when there is no correspondence, for example, if the last row above were
A B
461 Ben Wayne - where it should be Mary Carlsson.
Is it possible to check all the rows of both columns and identify errors?
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Dec 25, 2013
I'd like to delete (shift up) one of each set of duplicates but can't think of a way to do it
THOMAS
PHIL
PETER
JOHN
ALEX
ANDREW
THOMAS
PHIL
JOHN
JOHN
NEIL
PHIL
PHIL
THOMAS
RICHARD
BRUCE
JOHN
JOHN
PETER
NEIL
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Jan 20, 2010
I have columns from A to AA and need to count the duplicates in at least 2 columns and accordingly need to give them values on the basis of their ratings (A, B, C, D) and type of work (book, article etc) given in yet other columns.
I tried COUNTIF, but that does not work for multiple perimeters
I tried SUMPRODUCT, =SUMPRODUCT(($G$4:$G$3000=$G28)*($AA$4:$AA$3000=AA28)), but that only gives a multiplication of my input without the possibility of giving new values to the output.
I tried AND(IF( but that did not want to work either really...
I think the solution is ifsum, but I do not know how to use it in this scenario...
I know this all sounds a bit blurry, so let me attempt to make it more concrete.
Author Title Year Rating Type Desired outcome
P Marx I 2005 I A I Book I duplicate
A Hegel I 1923 I B I Article I -
B Kant I 1674 I D I Book I -
A Derrida I 2005 I D I Monograph............................
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Jun 6, 2008
I have got a very big list in worksheet "1" which contain of only one column, the column D. There are over 150 000 cells in column D and each cell contains of many members seperated by ";". Some cells in column D have many dozen members. Now i want to generate two new columns out of D in another worksheet "2". The two new columns in "2" should be the colulmns A and B.
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Mar 9, 2009
I want to search Column A in sheet1 vs column B in sheet 2. If there is a match, i want copy Column B in sheet 1 and PASTE it to Column E in sheet2. I have a macro (helped by those on here ) that will find the duplicates and copy cells from the cooresponding row only to another sheet.
The tricky thing is, the macro I have makes a complete new sheet. I want to copy the data to column E on sheet2 ONLY if there is a match for that cell. If ther eis nto a match i dont want it to put anything.
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Jun 1, 2012
I have two columns of B2 and C2 data in the same worksheet and want to identify duplicates in the columns and return a value of true or false in column D. The formula I have been utilizing is:
=IF(ISNA(VLOOKUP(B2,$C$2:$C$5000,2,FALSE)),0,VLOOKUP(B2,$C$2:$C$5000,2,FALSE))
However, i receive a #REF# return in D. What am I missing ?
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Aug 23, 2012
I'm trying to condense my email lists in order to stop people receiving the same email having signed up to several lists. How do I compare 5 different columns to find email addresses which appear in more than one...
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Jun 9, 2014
I'm running a football competition for my business where customers are required to guess World Cup football scores via Facebook. I'm storing all their entries in a spreadsheet.
In the spreadsheet column a is their name, b is the match (e.g. England v Italy), c is the home tame (England), d is the score (1-1), e is the away team (Italy)
Across from, that I have the actual fixtures taking place at the World Cup. So column I is the date, K is the home team (England), L is the actual score (2-0) and M is the away team (Italy)
What I need is a formula that when I enter the result on a game into the right set of columns (Columns I:M) it will highlight those Columns (Columns C:E) that have entered that correct score.
It needs to compare 3 columns and not just one because for example if it highlights the score (1:1 for example) it could be highlighting someone who picked Spain v Holland 1:1 where the correct result would be someone who picked England v Italy 1:1.
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Sep 16, 2008
This should be an easy one, it has slipped my mind.
I have columns A and B, I want to find any names that appear in both column A and column B. I want them to show in a certain color.
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Jul 13, 2009
I have a list of line items and I want to be able to see how many duplicates in Column A and B.
Column A has text field and column B is a numeric field
I thought I could use INDEX MATCH but I'm unsure.
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Dec 26, 2012
I would like to use the sumproduct or countif formula for a set of data. I have looked around the forum and have not found what I need so
Column A______Column B
West___________1
West___________2
West___________1
West___________2
South__________ 1
South__________2
South__________1
South__________2
I want to count column B for all "West" (column A) and I don't want duplicates. So it would count two unique characters for West and two unique characters for South. I want "west" and "south" separated.
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Mar 29, 2013
I have two columns of data, one with an ID # and the other one with a date. Some ID# + date combinations are repeated and I need to delete the duplicates. Here is a visual:
ID# date
54 19720211
54 19720211
54 19810512
67 19590312
89 19931104
89 19931104
I need to keep only unique ID/date combinations. I would need the final list to look like this:
ID# Date
54 19720211
54 19810512
67 19590312
89 19931104
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Aug 13, 2013
I have a list of about 85,000 addresses and I know that there are about 35,000 duplicates in it.
If I do 'Remove duplicates' it deletes them but takes the first one of each it finds and what I want to do is remove the duplicate with no UPRN in it (Column B)
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Mar 22, 2006
I have two columns of data. Each row cell is 27 characters long. I want to
find any duplicate matches between the two columns on just the 1st 9
characters of each cell. Is there a function that can do this?
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Jan 25, 2010
I need a one formula solution to compare two columns for duplicates and count the number of matched pairs. Need to ingore blanks. Can have matched numbers or letters. Asterik denotes a blank (empty) cell. Also only consider the first matched pair if there are more than one matched pairs.
Col A Col B
a
b a
* b
c c
d y
x f
f z
f z
In this case I only want to consider a:a, b:b, c:c and f:f, resulting in the count of 4.
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Oct 28, 2006
I have a column of information, and I want to find out of there are duplicates in it without alphabetizing it. Where there is a duplicate (say E2=E5), I want to check the adjoining column to see if the value of those fields are duplicates as well (does F2=F5). So, what formula would I put in D2 to see if the value of E2 has an equal anywhere in column E, and if any duplicates are found (say E10,E33, and E43), to check if F10,F33 and F43 equal F2 (the value adjoining the cell that was searched for).
to find duplicate entries in a database by using people's last names (in column E) and birthdays (in column F). Odds are if they have the same DOB and the same last name, we've found a duplicate.
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Jun 20, 2007
I have data in two columns where column A is a name and column B might be a synonym or might just equal the value in column A. I want to count duplicates if cell A2 matches any other cell in column A or B, unless the only match is with cell B2. If cell A2=B2, but also matches cell A7 then it should be counted as a duplicate. I've searched through a lot of the threads and found a lot of useful information, but nothing that seems to do what I need.
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Jul 25, 2007
I have searched the many forum solutions for duplicates however the ones I found relate to a single column. However what I would like to be able to do is starting from row 6 is to remove duplicates of multiples columns of a single worksheet, namely columns M, O, P, Q and R. Note some cells in each column are blank.
To clarify - it would firstly check for duplicates in column M, keeping just one of the rows of the duplicated value and removing entiely the row/rows of where the duplications appeared. Then go through each of the other four columns. of the worksheet doing the same for each of the other four columns.
Then after the duplicates are removed from all five columns provide a tally at the bottom of the worksheet of how many times a value now appears in the cells of each of repective columns.
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Aug 28, 2007
I need to find a way to highlight duplicate records within a list. The records would first need to be compared by (1) the month (found in column A), (2) the account number (found in column B) and then (3) the commission type (found in column D).
I do not need the duplicates deleted just highlighted or better yet maybe have them identified as "Duplicates" in an empty column (such as column H).
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Mar 14, 2008
I have two spreadsheet in which I am looking for duplicate customer names.
1st - "Customers"
2nd - "Orders"
In column A of my Customers spreadsheet I have the following formula
=IF(ISERROR(MATCH(E2,Orders$D2:D1000,0))=FALSE, "Y","N"). This allows me to see if a name in my Customer spreadsheet (column E is a field of names) is also in my Orders spreadsheet (column D is a field of names). My end results is either a Y indicating a duplicate or a N for no duplicates.
What I am looking to do next is to place in column B of my Customers spreadsheet the date that coincides with the duplicating customer name. Sorry to be confusing. If a customers name is found in the Orders spreadsheet I need to know what date has been given to this customer (column L in the Orders spreadsheet contains the date information).
However, on numerous occasions a customers name is found in the Orders spreadsheet more than once meaning there may be more than one date which needs to be placed in column B of my Customers spreadsheet.
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