题解 | 统计各等级会员用户下订单总额
统计各等级会员用户下订单总额
https://www.nowcoder.com/practice/48dd35a3dd8c4e1494db36b097a03300
select vip, sum(if(order_price is null, 0, order_price)) order_total
from uservip_tb
left join order_tb ot on uservip_tb.user_id = ot.user_id
group by vip
order by order_total desc;
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