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 t.id,t.name,t.weight ,sum(t1.count) as total from goods t join trans t1 on t.id=t1.goods_id where t.weight<50 group by t.id,t.name,t.weight having total>20 order by t.id
