Oracle中降序循环的方法？哪位高手知道到

begin    for i in reverse  1..10    loop        dbms_output.put_line(i);    end loop;end;/SQL> / 10987654321 PL/SQL procedure successfully completed
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SQL code
begin  for v_index in reverse 1..10 loop    dbms_output.put_line(to_char(v_index));  end loop;end;