1. cascading with single select control -> you need to use single select Query controls 2. For query , you can use :- select id as class_id, name as class_name from classes where school_id = $P{parameter_name} 3. Single select control cascading not working in 3.7 [ this is Bug which will be fixed in 3.7.1 release coming soon ] thanks Ramnik Kaur Senior QA Engineer