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,sum(t1.quantity*t1.item_price) total_ordered
from OrderItems t1,Orders t2
where t1.order_num=t2.order_num 
group by t2.cust_id
order by total_ordered desc

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