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Discussion Topic: Reference a Dynamic Column when outputting
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jaco5md |
04-14-2011 @ 3:04 PM |
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Senior Member
Posts: 492
Joined: Jul 2005
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I have a somewhat unique issue I'm not sure how to deal with. I am using a pivot table within my query to get data ready to display, however, two of the column names get generated dynamically. How can I reference them when I output the data from teh query without knowing the column names first? I hope I'm not being realy stupid but I can't seem to figure this out and was hoping you could point me in the right direction.
I'm doing this so I don't have to keep changing the report from year-to-year, making it more dynamic.
Here is what I am using:
<cfquery name="getP" datasource="#request.DSN#">
Select Top 2 ID, Left(Program,4) AS ProgYear
FROM vaccine_program
WHERE Program like '%Seasonal Flu%'
Order By ID Desc
</cfquery>
<cfset program = ArrayNew(2)>
<cfloop query="getP">
<cfset program[currentrow][1] = #getP.ID#>
<cfset program[currentrow][2] = #getP.ProgYear#>
</cfloop>
Using "Select *" so I can pivot the data.
<cfquery name="getVariance" datasource="#request.DSN#">
SELECT *
FROM (SELECT * FROM vw_Variance) AS DataTable
PIVOT
(SUM (RequestTotal) FOR ProgramID IN ([#program[2][1]#],[#program[1][1]#])) AS PivotTable
ORDER BY uicID
</cfquery>
Currently [#program[2][1]#] = 3 and [#program[1][1]#] = 1 however next year the values may be 3 and 5.
I hope this makes sense.
I've tried using this:
<cfset colList = getVariance.ColumnList>
and concatenating the variable but that didn't work, I'm not sure what else to try. Thanks for your time and attention.
-David
-David
"Rock 'n' Roll 4 Ever"
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Lyndon |
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04-14-2011 @ 4:04 PM |
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Junior Member
Posts: 66
Joined: Jun 2004
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Select * is, almost, never a good solution. It is hard to help and/or make sense of what you are trying to accomplish with out knowing the Table column names.
Show a few of the column names in table: vw_Variance and an example of the output you are trying to produce and maybe there will be enough information to help you.
Lyndon
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jaco5md |
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04-14-2011 @ 4:08 PM |
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Senior Member
Posts: 492
Joined: Jul 2005
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Thanks Lyndon,
I usually don't use Select *, but since two of these tablenames are going to be dynamic based on the array variables I thought I had to in order to successfully do the pivot.
Good news is I just figured out how to accomplish what I needed. Will post solution soon.
-David
"Rock 'n' Roll 4 Ever"
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