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 g.id,g.name,g.weight, sum(t.count) as total from goods g join trans t on g.id = t.goods_id group by g.id having total>=20 and g.weight<=50 order by g.id
注意是总购买个数超过20,
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