题解 | #纠错3#
纠错3
http://www.nowcoder.com/practice/3870c9bca7a4406f899af3e903b8bf51
SELECT order_num, COUNT(*) AS items
FROM OrderItems
GROUP BY order_num
HAVING COUNT(*) >= 3
ORDER BY items, order_num
FROM OrderItems
GROUP BY order_num
HAVING COUNT(*) >= 3
ORDER BY items, order_num
