PL/SQL Script to Inactive and Delete Adhoc Role

DECLARE
  lc_role_name apps.wf_roles.name%type := 'XX_TEST_ROLE';
BEGIN
  wf_directory.setadhocroleexpiration(lc_role_name, sysdate -1 );
  COMMIT;
  wf_directory.setadhocrolestatus( lc_role_name, 'INACTIVE');
  COMMIT;
  wf_directory.deleterole(lc_role_name , 'WF_LOCAL_ROLES' , 0);
  COMMIT;
END;
/

1. PL/SQL Script to Create Adhoc Role
2. PL/SQL Script to Remove and Add Users to Adhoc Role