SQL> DECLARE 2 TYPE courseList IS VARRAY(3) OF varchar2(25); 3 cl courseList; 4 BEGIN 5 cl := null; 6 cl := courseList(); 7 cl := courseList('CS 111','CS 436'); 8 cl := courseList('CS 111',NULL,'CS 436'); 9 END; 10 / PL/SQL procedure successfully completed. SQL>