Oracle collection MULTISET INTERSECT

MULTISET INTERSECT returns the elements that are present in both sets.
DECLARE
  TYPE t_tab IS TABLE OF NUMBER;
  l_tab1 t_tab := t_tab(1,2,3,4,5,6,7,8,9,10);
  l_tab2 t_tab := t_tab(6,7,8,9,10);
BEGIN
  l_tab1 := l_tab1 MULTISET INTERSECT l_tab2;
 
  FOR i IN l_tab1.first .. l_tab1.last LOOP
    DBMS_OUTPUT.put_line(l_tab1(i));
  END LOOP;
END;

/
6
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9
10

PL/SQL procedure successfully completed.