<code>
PROCEDURE P_ERROR
   ( v_last_name IN employees.last_name%TYPE)
   IS
   v_emp_id number(30);
BEGIN
   select employee_id into
     v_emp_id
   from
     employees
   where last_name = v_last_name;

   dbms_output.put_line(v_emp_id);
EXCEPTION
    WHEN no_data_found THEN
      dbms_output.put_line('keine Daten');
    WHEN too_many_rows THEN
      dbms_output.put_line('zuviele Daten');
    when others then
      dbms_output.put_line('irgendein Fehler '||SQLCODE);
END; -- Procedure
</code>