mysql 8 设置大小写不敏感

1. 停业务服务。
2. 备份数据
3. 停库

# systemctl stop mysqld

4. 修改配置
   

5. 删文件：

# rm /var/lib/mysql/* -rf

6. 启动：

# systemctl start mysqld

7. 设置密码等级

mysql> set global validate_password.policy=0;  
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password.length=1;
Query OK, 0 rows affected (0.00 sec)

8. 修改密码

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '密码';
Query OK, 0 rows affected (0.00 sec)

9. 设置root远程访问

mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> select host,user from user;
+-----------+------------------+
| host      | user             |
+-----------+------------------+
| localhost | mysql.infoschema |
| localhost | mysql.session    |
| localhost | mysql.sys        |
| localhost | root             |
+-----------+------------------+
4 rows in set (0.00 sec)

mysql> update user set host='%' where user='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> select host,user from user;
+-----------+------------------+
| host      | user             |
+-----------+------------------+
| %         | root             |
| localhost | mysql.infoschema |
| localhost | mysql.session    |
| localhost | mysql.sys        |
+-----------+------------------+
4 rows in set (0.00 sec)
mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '密码';
Query OK, 0 rows affected (0.00 sec)
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
Query OK, 0 rows affected (0.01 sec)
mysql>  flush privileges;
Query OK, 0 rows affected (0.00 sec)

10.查看大小写敏感

11. 重启数据库

systemctl restart mysqld

12.创建库名称

13. 导入数据