题解 | 出现三次以上相同积分的情况
出现三次以上相同积分的情况
https://www.nowcoder.com/practice/c69ac94335744480aa50646864b7f24d
select
number
from
(
select
number,
count(*) as gnum
from
grade
group by
number
) as g
where
gnum >= 3;
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