Example 5-29 Counting Collection Elements With COUNT

DECLARE
   TYPE NumList IS TABLE OF NUMBER;
   n NumList := NumList(2,4,6,8); -- Collection starts with 4 elements.
BEGIN
   DBMS_OUTPUT.PUT_LINE('There are ' || n.COUNT || ' elements in N.');
   n.EXTEND(3); -- Add 3 new elements at the end.
   DBMS_OUTPUT.PUT_LINE('Now there are ' || n.COUNT || ' elements in N.');
   n := NumList(86,99); -- Assign a completely new value with 2 elements.
   DBMS_OUTPUT.PUT_LINE('Now there are ' || n.COUNT || ' elements in N.');
   n.TRIM(2); -- Remove the last 2 elements, leaving none.
   DBMS_OUTPUT.PUT_LINE('Now there are ' || n.COUNT || ' elements in N.');
END;
/

Example 5-29 Counting Collection Elements With COUNT

DECLARE
   TYPE NumList IS TABLE OF NUMBER;
   n NumList := NumList(2,4,6,8); -- Collection starts with 4 elements.
BEGIN
   DBMS_OUTPUT.PUT_LINE('There are ' || n.COUNT || ' elements in N.');
   n.EXTEND(3); -- Add 3 new elements at the end.
   DBMS_OUTPUT.PUT_LINE('Now there are ' || n.COUNT || ' elements in N.');
   n := NumList(86,99); -- Assign a completely new value with 2 elements.
   DBMS_OUTPUT.PUT_LINE('Now there are ' || n.COUNT || ' elements in N.');
   n.TRIM(2); -- Remove the last 2 elements, leaving none.
   DBMS_OUTPUT.PUT_LINE('Now there are ' || n.COUNT || ' elements in N.');
END;
/