You would first need to read that users 'industry' field from
the database, then do something like
// get users industry and assign it to originalIndustryId
<select>
<cfoutput>
<cfloop query="industries">
<option value="#id#"<cfif id eq originalIndustryId>
selected</cfif>>#name#</option>
</cfloop>
</cfoutput>
</select>