hive查询最高分sql语句
在Hive中,查询最高分可以使用以下SQL语句:
1. 使用子查询和ORDER BY语句:
```
SELECT *
FROM students
WHERE score = (
    SELECT MAX(score)
    FROM students
);
```
2. 使用MAX函数和GROUP BY语句:
```
SELECT student_id, MAX(score)
FROM students
GROUP BY student_id;
```
3. 使用窗口函数和PARTITION BY子句:
```
SELECT student_id, score
FROM (
    SELECT student_id, score, ROW_NUMBER() OVER (PARTITION BY student_id ORDER BY score DESC) AS rn
    FROM students
) t
WHERE rn = 1;
```
4. 使用LIMIT关键字和ORDER BY子句:
```
SELECT *
FROM students
ORDER BY score DESC
LIMIT 1;
```
5. 使用HAVING子句和GROUP BY语句:
```
SELECT student_id, MAX(score)
FROM students
GROUP BY student_id
HAVING MAX(score) = (
    SELECT MAX(score)
    FROM students
);
```
6. 使用子查询和IN关键字:
```
SELECT *
FROM students
WHERE score IN (
    SELECT MAX(score)
join和in哪个查询更快    FROM students
);
```
7. 使用EXISTS关键字和子查询:
```
SELECT *
FROM students s1
WHERE NOT EXISTS (

版权声明:本站内容均来自互联网,仅供演示用,请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198,我们将在24小时内删除。