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#1
August 31st 08, 07:45 PM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Nov 2007 Posts: 16
formula to find "missing" data

Hi!
I am looking for a formula that can:
I have a list of (nearly) identical numbers in two columns. In one column
there are 100 numbers and in column 2 there are 90 numbers. Is there a
formula or macro which can find the 10 numbers which are in column 1, but not
in column 2 and list them in at third column?
I am testing two databases that should have the same data, but doesn't. I
have the 2007 version of Excel.
LEG

#2
August 31st 08, 08:22 PM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Jul 2006 Posts: 5,651
formula to find "missing" data

On Sun, 31 Aug 2008 11:45:01 -0700, LEG wrote:

Hi!
I am looking for a formula that can:
I have a list of (nearly) identical numbers in two columns. In one column
there are 100 numbers and in column 2 there are 90 numbers. Is there a
formula or macro which can find the 10 numbers which are in column 1, but not
in column 2 and list them in at third column?
I am testing two databases that should have the same data, but doesn't. I
have the 2007 version of Excel.
LEG

If your data is in A1:A100 & B1:B90, then this array-entered formula will list

This is an **array** formula so must be entered with <ctrl<shift<enter. If
you do it correctly, Excel will place braces {...} around the formula:

=IF(ROWS(\$1:1)SUM(--ISNA(MATCH(\$A\$1:\$A\$100,\$B\$1:\$B\$90,0))),
"",INDEX(\$A\$1:\$A\$100,LARGE(ISNA(MATCH(
\$A\$1:\$A\$100,\$B\$1:\$B\$90,0))*ROW(INDIRECT("1:100")), ROWS(\$1:1))))

Fill down until you don't get any values returned.
--ron
#3
September 1st 08, 02:27 AM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Jul 2006 Posts: 9,221
formula to find "missing" data

Another play using simple n fast non-array formulas

Assuming data in cols A and B, from row 2 down
In C2:
=IF(A2="","",IF(COUNTIF(B:B,A2),"",ROWS(\$1:1)))
Leave C1 blank

In D2:
=IF(ROWS(\$1:1)COUNT(C:C),"",INDEX(A:A,SMALL(C:C,R OWS(\$1:1))+1))
Copy C22 down to the last row of data expected in col A, eg down to D1000?
Minimize/hide col C. Col D will return the list of items in col A not found
in col B, with results all neatly packed at the top
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
---
"LEG" wrote:
I am looking for a formula that can:
I have a list of (nearly) identical numbers in two columns. In one column
there are 100 numbers and in column 2 there are 90 numbers. Is there a
formula or macro which can find the 10 numbers which are in column 1, but not
in column 2 and list them in at third column?
I am testing two databases that should have the same data, but doesn't. I
have the 2007 version of Excel.
LEG

#4
September 9th 08, 04:38 PM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Nov 2007 Posts: 16
formula to find "missing" data

Thanks - it worked!
--
LEG-denmark

"Ron Rosenfeld" skrev:

On Sun, 31 Aug 2008 11:45:01 -0700, LEG wrote:

Hi!
I am looking for a formula that can:
I have a list of (nearly) identical numbers in two columns. In one column
there are 100 numbers and in column 2 there are 90 numbers. Is there a
formula or macro which can find the 10 numbers which are in column 1, but not
in column 2 and list them in at third column?
I am testing two databases that should have the same data, but doesn't. I
have the 2007 version of Excel.
LEG

If your data is in A1:A100 & B1:B90, then this array-entered formula will list

This is an **array** formula so must be entered with <ctrl<shift<enter. If
you do it correctly, Excel will place braces {...} around the formula:

=IF(ROWS(\$1:1)SUM(--ISNA(MATCH(\$A\$1:\$A\$100,\$B\$1:\$B\$90,0))),
"",INDEX(\$A\$1:\$A\$100,LARGE(ISNA(MATCH(
\$A\$1:\$A\$100,\$B\$1:\$B\$90,0))*ROW(INDIRECT("1:100")), ROWS(\$1:1))))

Fill down until you don't get any values returned.
--ron

#5
September 9th 08, 04:43 PM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Nov 2007 Posts: 16
formula to find "missing" data

Thanks - this one worked as well.
--
LEG-denmark

"Max" skrev:

Another play using simple n fast non-array formulas

Assuming data in cols A and B, from row 2 down
In C2:
=IF(A2="","",IF(COUNTIF(B:B,A2),"",ROWS(\$1:1)))
Leave C1 blank

In D2:
=IF(ROWS(\$1:1)COUNT(C:C),"",INDEX(A:A,SMALL(C:C,R OWS(\$1:1))+1))
Copy C22 down to the last row of data expected in col A, eg down to D1000?
Minimize/hide col C. Col D will return the list of items in col A not found
in col B, with results all neatly packed at the top
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
---
"LEG" wrote:
I am looking for a formula that can:
I have a list of (nearly) identical numbers in two columns. In one column
there are 100 numbers and in column 2 there are 90 numbers. Is there a
formula or macro which can find the 10 numbers which are in column 1, but not
in column 2 and list them in at third column?
I am testing two databases that should have the same data, but doesn't. I
have the 2007 version of Excel.
LEG

#6
September 9th 08, 11:47 PM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Jul 2006 Posts: 9,221
formula to find "missing" data

Welcome ..
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
---
"LEG" wrote in message
...
Thanks - this one worked as well.
--
LEG-denmark

#7
September 10th 08, 01:25 AM posted to microsoft.public.excel.worksheet.functions
 external usenet poster First recorded activity by ExcelBanter: Jul 2006 Posts: 5,651
formula to find "missing" data

On Tue, 9 Sep 2008 08:38:28 -0700, LEG wrote:

Thanks - it worked!
--
LEG-denmark

You're welcome. Glad to help. Thanks for the feedback.
--ron

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