题解 | #确定哪些订单购买了指定产品（一）#

# 查询购买了BR01产品的订单
select order_num
from OrderItems
where prod_id = 'BR01'
# 查询购买了该产品的订单所对应的顾客ID和订单日期
select cust_id, order_date
from Orders
where order_num in(
    select order_num
    from OrderItems
    where prod_id = 'BR01'
)
order by order_date;