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