题解 | #返回购买价格为 10 美元或以上产品的顾客列表#
返回购买价格为 10 美元或以上产品的顾客列表
https://www.nowcoder.com/practice/827eb2a210c64ccdb8ec28fe4c50c246
解法一：表连接 1：select cust_id from Orders,OrderItems
where Orders.order_num = OrderItems.order_num and item_price >= 10
表连接 2：select cust_id from Orders o1
inner join OrderItems o2 on o1.order_num = o2.order_num
where item_price >= 10
解法二：子连接
select cust_id from Orders
where order_num in (select order_num from OrderItems
where item_price >= 10
)
