题解 | #确定最佳顾客的另一种方式（二）#
确定最佳顾客的另一种方式（二）
http://www.nowcoder.com/practice/b5766f970ae64ac7944f37f5b47107aa
select cust_name, sum(item_price * quantity) as total_price
from OrderItems
inner join Orders
on OrderItems.order_num = Orders.order_num
inner join Customers
on Orders.cust_id = Customers.cust_id
group by Customers.cust_name
having total_price >= 1000
order by total_price
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