DECLARE 
v_great_result NUMBER; 
v_least_result NUMBER; 
BEGIN 
	SELECT GREATEST(100,200,300) INTO 
	v_great_result FROM DUAL; 
	SELECT LEAST(100,200,300) INTO 
	v_least_result FROM DUAL; 
	 
	DBMS_OUTPUT.PUT_LINE('Value returned by the GREATEST Function : '||v_great_result); 
	DBMS_OUTPUT.PUT_LINE('Value returned by the LEAST Function    :	'||v_least_result); 
END;