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Duplicate Rows Missing in Union Query

Posted on 2008-10-14
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Last Modified: 2012-05-05
Urgent assistance needed from fellow Access/Jet gurus to help me repair a glitch in accounting software.

I have a report that is based on a union query.  The union query joins two simple select queries.

Although the output of the underlying queries appears to be correct, when I view the raw output of the union query it has actually removed duplicate rows from the underlying queries.  This is critical because it is reporting transactions for which the dates and amounts may be identical for unique transactions.

Because the report is working in all other aspects, I prefer a solution that does not change the query output beyond restoring the duplicate rows.  Perhaps there is a DISTINCT keyword or equivalent that I need to mess around with?

Here is the raw union query:

TABLE [Report Cash Account Month]
UNION TABLE [Report Cash Previous Balance]
ORDER BY CashTransactionDate;

Should this cause rows to disappear???
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Question by:miqrogroove
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Accepted Solution

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peter57r earned 2000 total points
ID: 22718540
Union removes duplicates.
Use
Union ALL
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Author Comment

by:miqrogroove
ID: 22718548
peter57r, thanks for the quick reply.  I believe you are correct.  I flipped open mysql.com and in their language it does default to DISTINCT.  I will accept after some testing. :)
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Author Closing Comment

by:miqrogroove
ID: 31506207
My tax returns are saved!  Thank you!
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