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）
https://www.nowcoder.com/practice/999aa31a9a504c60baa088d90d82e64d
select O.cust_id,O.order_date from (select order_num from OrderItems where prod_id = 'BR01') OI join Orders O on OI.order_num = O.order_num order by O.order_date
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