题解 | 用户订单信息查询
用户订单信息查询
https://www.nowcoder.com/practice/dccec8456d774169925c0d50843ea076
select city,sum(total_amount) as total_order_amount from orders o inner join customers c on o.customer_id=c.customer_id group by city order by total_order_amount desc,city;