Создание скрипта сохранения и изменения паролей

set pause off;
set pages 0;
set linesize 140;
set feedback off;
set termout off;
column cmd_line format a80
column tick format a3
column sum_bytes format 999,999,999,999
spool return_pass.spool.sql;
select 'alter user "'||username||'" identified by values '''||password||''';' from dba_users;
spool off;
spool change_pass.spool.sql;
select 'alter user "'||username||'" identified by qqq;' from dba_users;
spool off;
exit;