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Re: Another Set of Eyes Please

Subject: Re: Another Set of Eyes Please
From: Steve Miller <s.miller@xxxxxxxxxxxx>
Date: Wed, 16 Jan 2008 13:50:44 -0600
Newsgroups: macromedia.coldfusion.database_access


Hi Ian - Thank you for the quick response. With your help I was able to get the results I wanted.

Thanks again,
Steve

Ian Skinner wrote:
Steve Miller wrote:
 > SELECT Members.member_ID, Members.member_FirstName,
Members.member_LastName, Results.results_MemID, Sum(Results.results_Points) AS Total_Pts FROM Members INNER JOIN Results ON Members.member_ID = Results.results_MemID
GROUP BY Members.member_ID

When you use a SQL aggregate function, SUM() in your case, all the fields in the SELECT clause must either be in an aggregate function OR the GROUP BY clause. You need to put member_firstName, member_LastName and resutls_MemID into one of these locations.

Doing this may very well provide different results then what you want depending exactly on what data you are summing and selecting. Sometimes you have to have your analysis queries separate from your basic select queries and then join the results up in the output.

Also be aware that what order you put the fields into the GROUP BY clause may change the results, again depending on the nature of your data.

This version works:
SELECT results_MemID, Sum(results_Points) AS Total_Pts
FROM Results
GROUP BY results_MemID

All the fields in the SELECT clause, results_memID and results_points, are either in an aggregate function, SUM() or the GROUP BY clause.


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