```
SELECT
c.id,
c.name,
MAX(s.score) AS maxScore,
MIN(s.score) AS minScore,
AVG(s.score) AS avgScore,
2023-07-11 10:50
155
0
0
0
SELECT student_no,student_name,COUNT(course_no) AS course_num,SUM(score) AS total_score FROM student LEFT
2023-06-16 08:34
155
0
0
0
1. 语法选项说明-h, --host=name主机名-P[ port_num], --port=port_num用于连接MySQL服务器的的TCP/IP端口号--master-data这个选项可以把binlog的位
2021-12-07 14:33
154
0
0
0
```
SELECT course_id, course_name,
COUNT(CASE WHEN score BETWEEN 100 AND 85 THEN 1 END) AS 100-85,
2023-07-11 10:53
153
0
0
0
mysql数据库分表及实现
MySQL数据库分表是将一个大型表拆分成多个小表的过程，用于提高查询性能和管理数据。下面是一种常见的MySQL数据库分表实现方法：
确定分表依据：首先需要确定分表的依据，即
2023-06-05 15:46
153
0
0
0
错误代码 1045Access denied for user root@localhost (using password:YES)解决办法是重新设置root用户密码，在Windows平台下操作步骤如下：1、以系统
2021-12-07 15:43
153
0
0
0
SELECT student_num,student_name FROM student_score WHERE course_score
2023-07-10 09:02
152
0
0
0