นับจำนวนออร์เดอร์และคำนวณต้นทุนรวม

INSERT INTO Person  
VALUES (1, 'Andrew', 'Anderson','Union Ave 10','New York','1986-12-30');
INSERT INTO Person 
VALUES (2, 'Sam', 'Smith','Flushing Ave 342','New York','1986-12-30');

INSERT INTO History VALUES ( 1, 'IPhone XS', 1000, 1);
INSERT INTO History VALUES ( 2, 'MacBook Pro', 1800, 1);
INSERT INTO History VALUES ( 5, 'IPhone XR', 600, 2);
INSERT INTO History VALUES ( 6, 'IWatch 4', 400, 1);

SELECT 
    Person.ID,
    -- Count the number of orders
    ___(___) as ___,
    -- Add the total price of all orders
    ___(___) as ___
FROM Person
	-- Join the tables Person and History on their IDs
	___ History 
	ON Person.___ = History.___
-- Aggregate the information on the ID
___ ___ Person.___;