select c.constraint_id, c.constraint_name, c.rel_side from rel_constraints c where c.rel_segment = :segment_id select count(*) as number_elements from rel_segment_party_map map where map.segment_id = :segment_id and exists (select 1 from acs_object_party_privilege_map perm where perm.object_id = map.party_id and perm.party_id = :user_id and perm.privilege = 'read')