题解 | 确定哪些订单购买了 prod_id 为 BR01 的产品(一)
select cust_id, order_date from OrderItems ori join Orders ord on ori.order_num = ord.order_num where prod_id = 'BR01' order by order_date asc
select cust_id, order_date from OrderItems ori join Orders ord on ori.order_num = ord.order_num where prod_id = 'BR01' order by order_date asc
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