Hi all!
How can I update only selected records from recordset at once?
We have a form page form.cfm and processing page update.cfm.
In form page there is a list of rows generated with <cfoutput query>. Each row contain checkbox, textfield1, textfield2.
Processing page has a query procedure.
I tried cfloop, but always got an error: If checkbox is not checked, variable of checkbox become undefined.

What is the solve of this problem?

If the checkbox is not checked, it won't be passed to the submitted page. Use cfparam for defaults and check against that.

Yes, quite right. Cfparam helps!

Glad to hear it. Post again if you have more questions.