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create UPDATE query with CFLOOP
I would like to create a query based on CFLOOP. I need to update a undetermined number of numerically-named fields. After the loop is processed, I am looking for the following example to be what the MySQL server gets:
<cfquery datasource="DSN">
UPDATE myTable
SET Field = 'Form.Field1',
Field = 'Form.Field2',
Field = 'Form.Field3',
WHERE x = y
</cfquery>
I was thinking that the code could be something like this:
<cfquery datasource="DSN">
UPDATE myTable
SET dummy=0
<cfloop from="1" to="#NumberOfLoops#" index="i">
,Field = '#Form.Field#i##'
</cfloop>
WHERE x = y
</cfquery>
However, I don't know if you can nest variables like this. How could I accomplish what I'm describing?
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by: CFDevHeadPosted on 2003-11-18 at 08:23:51ID: 9771877
Try this.
<cfquery datasource="DSN">
UPDATE myTable
SET dummy=0
<cfloop from="1" to="#NumberOfLoops#" index="i">
,Field = '#evaluate("Form.Field" & i)#'
</cfloop>
WHERE x = y
</cfquery>