题解 | #返回每个顾客不同订单的总金额#
返回每个顾客不同订单的总金额
https://www.nowcoder.com/practice/ce313253a81c4947b20e801cd4da7894
select
t2.cust_id as cust_id,
t1.total_ordered as total_ordered
from
(
select
order_num,
sum(item_price * quantity) as total_ordered
from
OrderItems
group by
order_num
) as t1, Orders as t2
where t1.order_num = t2.order_num
order by total_ordered desc;
，那么有还在纯聊经验聊技术的群吗
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