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.*,t.total
from
(
select goods_id ,sum(count) as total
from trans
group by goods_id
having sum(count)>20
) t
join goods g
on g.id=t.goods_id
where g.weight<50
