<?xml version="1.0" encoding="UTF-8"?>
<bm:model xmlns:bm="http://www.leaf-framework.org/schema/bm">
    <bm:operations>
        <bm:operation name="query">
            <bm:query-sql><![CDATA[
	            select * from prj_project
	            where project_id = (select project_id from con_contract where contract_id = ${@contract_id})
	        ]]></bm:query-sql>
        </bm:operation>
    </bm:operations>
</bm:model>