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)
https://www.nowcoder.com/practice/f257dfc1b55e42e19eec004aa3cb4174
select a.id,name,weight,sum(count) as total from goods a right join trans b on a.id=b.goods_id where weight<50 group by b.goods_id having total>20 order by a.id
