How can I insert data from a cfloop?

It's because of the way of your coding is quite wrong. Because we didn't give specific name for each individual input and didn't call specific value from each inputs.

Here is your code I've fixed already. Check it out.

<cfoutput>      <cfloop query="update" >      <tr>           <td><input type="text" name="meeting_date#currentrow#" value="#meeting_date#" /></td>           <td><input type="text" name="contact_first#currentrow#" value="#update.contact_first#" /></td>           <td><input type="text" name="contact_last#currentrow#" value="#update.contact_last#" /></td>           <td>Attended <input type="checkbox" name="attended#currentrow#" value="yes" /></td>           <td><input type="text" name="leads#currentrow#" size="3" /></td>      </tr>      </cfloop> </cfoutput> <cfloop index="i" from="1" to="#update.recordcount#">      <cfset meeting_date = form["meeting_date#i#"]>      <cfset contact_first = form["contact_first#i#"]>      <cfset contact_last = form["contact_last#i#"]>      <cfset attended = form["attended#i#"]>      <cfset leads = form["leads#i#"]>      <cfquery datasource="#application.Database#">           INSERT INTO quarterly (meeting_date, contact_first, contact_last, attended, leads)           VALUES ('#meeting_date#', '#contact_first#', '#contact_last#','#attended#',leads)      </cfquery> </cfloop>

First of all, you can just use CFOUTPUT to do your loop:

Of course, that assumes that all the datatypes in the database are

character / simple string columns.

The first thing that comes to my mind is, why do you want to insert new records instead of updating the existing ones?

I also have an observation about your meeting_date field.  It appears to be text instead of a date.  If that's the case, it's a bad idea.

As far as your existing code goes, the only thing drastically wrong is a lack of octothorps around the word "leads" in the values part of your insert query.