select * from t_Student where S_sex like '[女]' and S_class = 95031
select * from t_Student order by S_class desc
select * from t_Score order by C_no asc
select * from t_Score order by S_chengji desc
select * from t_Student where S_class = 95031
select top 1 * from t_Score order by S_chengji desc
