题解 | #返回订单数量总和不小于100的所有订单的订单号#
返回订单数量总和不小于100的所有订单的订单号
https://www.nowcoder.com/practice/ff77e82b59544a15987324e19488aafd
select t.order_num from (select order_num,sum(quantity) as hz from OrderItems group by order_num having hz>=100 ) t order by t.order_num
简单