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 t.goods_id id,g.name,g.weight,t.total from
(select distinct goods_id, sum(count) over(partition by goods_id ) as total
from trans) t
inner join goods g
on g.id=t.goods_id
where g.weight<50 and t.total>20
order by id
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