SQL> SQL> DECLARE 2 a1 INTERVAL DAY TO SECOND := '2 3:4:5.6'; 3 a2 INTERVAL YEAR TO MONTH := '2-10'; 4 a3 NUMBER := 3; 5 BEGIN 6 7 DBMS_OUTPUT.PUT_LINE(a1 * 2); 8 DBMS_OUTPUT.PUT_LINE(a2 * 2); 9 DBMS_OUTPUT.PUT_LINE(a3 * 2); 10 11 END; 12 / PL/SQL procedure successfully completed. SQL> SQL>