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Article #170Re: How to summarize (and group) the result of a union?
From: Bill Todd [TeamB]
Date: Tue, 01 Jul 2008 13:57
Date: Tue, 01 Jul 2008 13:57
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1619 bytes
Olivier Peter wrote: > > I want to make a sum of amount grouped by year, month, week and day > based on the result set of a union. However, when i try the > following i get an error on line three token unknown SELECT. > > SELECT YEAR, MONTH, WEEK, DAY, SUM(AMOUNT) FROM > ( > SELECT YEAR, MONTH, WEEK, DAY, AMOUNT FROM TABLE1 > UNION > SELECT YEAR, MONTH, WEEK, DAY, AMOUNT FROM TABLE2 > ) > GROUP BY YEAR, MONTH, WEEK, DAY > > Any ideas how to make this work? InterBase does not support derived tables. Create a view with the UNION then select from the view. Unless you want duplicates dropped use UNION ALL for better performance. -- Bill Todd (TeamB)
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From: "Bill Todd [TeamB]" <no@no.com>
Subject: Re: How to summarize (and group) the result of a union?
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