排名

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过去一年提交了

勋章 ①金银铜：在竞赛中获得第一二三名；②好习惯：自然月10天提交；③里程碑：解决1/2/5/10/20/50/100/200题；④每周打卡挑战：完成每周5题，每年1月1日清零。

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提交日期 题目名称 提交代码
2026-01-27 S1年级物理成绩前10名（2）  
WITH ranked_scores AS (
    SELECT 
        s.student_id, 
        s.name, 
        sc.score,
        RANK() OVER (ORDER BY sc.score DESC) AS ranking
    FROM 
        students s
    JOIN 
        scores sc ON s.student_id = sc.student_id
    WHERE 
        s.grade_code = 'S1' 
        AND sc.subject = '物理'
)
SELECT 
    student_id, 
    name, 
    score, 
    ranking
FROM 
    ranked_scores
WHERE 
    ranking <= 10
ORDER BY 
    ranking;
2026-01-27 S1年级物理成绩前10名（1）  
select sc.student_id , s.name , sc.score,
row_number()over(PARTITION BY s.grade_code order by sc.score desc)'rnk'
from scores sc join students s on sc.student_id = s.student_id
where s.grade_code = 's1' andsc.subject = '物理'
order by rnk 
limit 10;
2026-01-27 S1年级物理成绩前10名（1）  
select sc.student_id , s.name , sc.score,
row_number()over( order by sc.score desc)'rnk'
from scores sc join students s on sc.student_id = s.student_id
where s.grade_code = 's1' andsc.subject = '物理'
order by rnk 
limit 10;
2026-01-27 S1年级物理成绩前10名（1）  
select sc.student_id , s.name , sc.score,
row_number()over( order by sc.score desc)'rnk'
from scores sc join students s on sc.student_id = s.student_id
where s.grade_code = 's1' andsc.subject = '物理'
limit 10;
2026-01-27 S1年级物理成绩前10名（1）  
select sc.student_id , s.name , sc.score,
row_number()over( order by sc.score desc)'排名'
from scores sc join students s on sc.student_id = s.student_id
where s.grade_code = 's1' andsc.subject = '物理'
limit 10;
2026-01-25 人数最多的学生姓氏  
select
 left(name,1) as surname,
 count(1) as cnt
from 
students
group by
left(name,1)
 order by cnt desc
 limit 5;
2026-01-25 学生信息和班主任姓名  
select s.name , s.class_code , s.grade_code , t.name
from students s join teachers t on s.class_code = t.head_teacher
order by s.student_id;