amend

lab-5/vending-machine/sql/schema.sql

@@ -25,4 +25,12 @@ INSERT INTO DrinkOption VALUES
 
 INSERT INTO Selection VALUES
 (NULL, 'A', '1'),
+(NULL, 'A', '2'),
 (NULL, 'D', '0');
+
+SELECT drink_name, code, price FROM DrinkOption ORDER BY code;
+
+SELECT do.drink_name, COUNT(s.id) FROM DrinkOption do
+INNER JOIN Selection s
+ON s.option_code=do.code
+GROUP BY do.drink_name;