ColdFusion programming

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i trying extract data sql database in dynamic page using drop down list.

the drop down menu (data) has 1 option if it's selected,
select * table if other options selected combo box,
select * table column #data#.

i have coded second aspect of query , works recieve specified data database addthe first aspect extract data table if particular option selected, i'm struggling it. think requires <cfif> statement have tried number of times no success.

could advise me of should do?

thanks,
aqsa



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