题解 | 查询成绩
查询成绩
https://www.nowcoder.com/practice/ef30689ae065434c89c129e9dfe1b4cd
select count(*) from( select sId, avg(score) as avg_score from SC group by sId) t where avg_score > 60
查询成绩
https://www.nowcoder.com/practice/ef30689ae065434c89c129e9dfe1b4cd
select count(*) from( select sId, avg(score) as avg_score from SC group by sId) t where avg_score > 60
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