题解 | #确定哪些订单购买了 prod_id 为 BR01 的产品（二）#
确定哪些订单购买了 prod_id 为 BR01 的产品（二）
http://www.nowcoder.com/practice/999aa31a9a504c60baa088d90d82e64d
select cust_id,order_date from Orders
where order_num in (select order_num from OrderItems where prod_id='BR01')
order by order_date;
select cust_id,order_date
from Orders join OrderItems on Orders.order_num=OrderItems.order_num
where prod_id='BR01'
order by order_date;