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From:Paul DuBois Date:April 27 2002 7:29pm
Subject:Re: Multiple Sum Queries
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At 14:24 -0500 4/27/02, dstark@stripped wrote:
>I have a table full of cell phone data with three important columns: 
>ServiceNumber, ratingPeriod (1,2 or 3) and minutes. I want to run a 
>query grouped by serviceNumber that gives me the sum of minutes per 
>rating period for each of the numbers in the other cloumns. So the 
>query result will look like this:
>serviceNumber | SUM(of minutes where ratingPeriod =1) | SUM(of 
>minutes where ratingPeriod =2) | SUM(of minutes where ratingPeriod 
>I was able to do this with other tools using "Transform" and "Pivot" 
>commands which are not present in MySQL.
>Is this particular query possible in MySQL? If it is not possible 
>with a query perhaps it would be possible to build a table in memory 
>and add the three columns to it individually?

SELECT serviceNumber, SUM(IF(ratingPeriod=1,minutes,0)),
FROM tbl_name GROUP BY serviceNumber;
Multiple Sum Queriesdstark27 Apr
  • Re: Multiple Sum QueriesPaul DuBois27 Apr