CREATE OR REPLACE VIEW V_LAST_ENQUIRY_UPDATE AS
SELECT enqu.id,
       enqu.mprn,
       enqu.transaction_reference,
       enqu.install_postcode,
       enro1."PRTY_ID",enro1."RT_CODE",enro1."START_DATE",enro1."END_DATE",enro1."DESCRIPTION",enro1."ENQU_ID"
  FROM enquiries enqu,
       enquiry_roles enro1,
       (SELECT enro.enqu_id, MAX(enro.start_date) max_date
          FROM enquiry_roles enro
         WHERE enro.rt_code = 'AGENT'
         GROUP BY enro.enqu_id) enq_roles
 WHERE enq_roles.enqu_id = enqu.id
   AND enro1.start_date = enq_roles.max_date
   AND enro1.rt_code = 'AGENT'
 ORDER BY enqu.ID;