Query to Build the Relationship Hierarchy (HZ_RELATIONSHIP) in Oracle Apps

SELECT DISTINCT LPAD (' ', LEVEL * 2) || LEVEL
              , CONNECT_BY_ROOT hp1.party_name AS ROOT
              , SYS_CONNECT_BY_PATH(hp1.party_name, ':') AS CHAIN            
              , hp1.party_name parent_party
              , hp1.party_id parent_party_id
              , hp1.party_number parent_party_number
              , hp.party_name child_party
              , hp.party_id child_party_id
              , hp.party_number child_party_number
           FROM hz_relationships hr
              , hz_parties hp
              , hz_parties hp1
          WHERE object_id = hp.party_id
            AND hp1.party_id = hr.subject_id
            AND hp.status = 'A'
            AND hr.status = 'A'
            AND hr.direction_code = 'P'
            AND relationship_type = :p_hierarchy_type 
     START WITH hp1.party_id = :p_parent_party_id 
            AND relationship_type = :p_hierarchy_type 
            AND hr.status = 'A'
     CONNECT BY NOCYCLE PRIOR hr.object_id = hr.subject_id
            AND hr.object_type = PRIOR hr.subject_type
            AND hr.object_table_name = PRIOR hr.subject_table_name
            AND hr.direction_code = 'P'
            AND hr.status = 'A'
       ORDER SIBLINGS BY hp.party_name