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Summarize by Date in Access Query

Posted on 2012-08-21
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Last Modified: 2012-08-21
Hi all,

I am doing a query (please see picture for where I stand)

What I really want to do is summarize origin & destination columns data by each date

There are 12 unique origin and destin for each date

eg:

Trip Date              ORIGIN        DESTIN                            

2/07/2012            TO                 VA
2/07/2012            TO                 CA
2/07/2012            TO                 ED
2/07/2012            TO                 WI
2/07/2012            TO                 OTHER
2/07/2012            ML                 VA
2/07/2012            ML                 CA
2/07/2012            ML                 ED
2/07/2012            ML                 WI
2/07/2012            ML                 OTHER
2/07/2012            REST              REST

How do I go on to summarize the data by date from this point on?

Any help in correct step is much appreciated!
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Question by:Shanan212
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5 Comments
 
LVL 40

Expert Comment

by:als315
ID: 38317439
Can you show expected result?
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LVL 22

Expert Comment

by:Flyster
ID: 38317552
If you're looking for a count of each unique value, you can use this:

SELECT YourTable.[Trip Date], YourTable.[ORIGIN], YourTable.[DESTIN], Count(YourTable.ORIGIN) AS CountOfORIGIN
FROM YourTable
GROUP BY YourTable.[Trip Date], YourTable.[ORIGIN], YourTable.[DESTIN];

Flyster
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LVL 13

Author Comment

by:Shanan212
ID: 38317593
The expected result is this

2/07/2012            TO                 VA
2/07/2012            TO                 CA
2/07/2012            TO                 ED
2/07/2012            TO                 WI
2/07/2012            TO                 OTHER
2/07/2012            ML                 VA
2/07/2012            ML                 CA
2/07/2012            ML                 ED
2/07/2012            ML                 WI
2/07/2012            ML                 OTHER
2/07/2012            REST              REST

My current results are in the screenshot

Flyster, its not nessarily unique value as for each date, there is are multilple "TO" as origin and "VA" available (example)
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LVL 22

Accepted Solution

by:
Flyster earned 500 total points
ID: 38317741
The code I provided will give you that result with the addition of a count field which tells you how many such entries exists. If you don't need the count, you can use this:

SELECT YourTable.[Trip Date], YourTable.ORIGIN, YourTable.DESTIN
FROM YourTable
GROUP BY YourTable.[Trip Date], YourTable.ORIGIN, YourTable.DESTIN;
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LVL 13

Author Closing Comment

by:Shanan212
ID: 38317785
That works! Thanks!
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