题解 | #返回每个顾客不同订单的总金额#没有使用嵌套查询
返回每个顾客不同订单的总金额
https://www.nowcoder.com/practice/ce313253a81c4947b20e801cd4da7894
select cust_id,sum(quantity*item_price) as total_ordered from OrderItems as a left join Orders as b on a.order_num=b.order_num where b.cust_id is not null group by cust_id order by total_ordered desc没有使用嵌套查询#sql#
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