CREATE OR REPLACE PACKAGE pkg AS 
  TYPE NumList IS TABLE OF NUMBER; 
  PROCEDURE print_numlist (nums NumList); 
END pkg; 

CREATE OR REPLACE PACKAGE BODY pkg AS 
  PROCEDURE print_numlist (nums NumList) IS 
  BEGIN 
    FOR i IN nums.FIRST..nums.LAST LOOP 
      DBMS_OUTPUT.PUT_LINE(nums(i)); 
    END LOOP; 
  END; 
END pkg; 

DECLARE 
  TYPE NumList IS TABLE OF NUMBER;  -- local type identical to packaged type 
  n1 pkg.NumList := pkg.NumList(2,4);  -- packaged type 
  n2     NumList :=     NumList(6,8);  -- local type 
BEGIN 
  pkg.print_numlist(n1);  -- succeeds 
  pkg.print_numlist(n2);  -- fails 
END;