题解 | #商品交易(网易校招笔试真题)#
商品交易(网易校招笔试真题)
http://www.nowcoder.com/practice/f257dfc1b55e42e19eec004aa3cb4174
select g.id,g.name,g.weight,t.total
from goods g
join
(select goods_id,sum(count) total
from trans
group by goods_id
having total > 20) t
on g.id = t.goods_id
where g.weight < 50;
求问为什么我用窗口函数一直报错 是不是那里写错了?
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