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
http://www.nowcoder.com/practice/ff77e82b59544a15987324e19488aafd
select order_num
from OrderItems
-- 顺序:where group by order by
/*
where quantity>=100
group by order_num
order by order_num;
*/
group by order_num
having sum(quantity)>=100
order by order_num;
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