mysql 8 設置大小寫不敏感

1. 停業務服務。
2. 備份數據
3. 停庫

# systemctl stop mysqld

4. 修改配置
   

5. 刪文件：

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

6. 啟動：

# systemctl start mysqld

7. 設置密碼等級

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. 修改密碼

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

9. 設置root遠程訪問

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 '密碼';
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.查看大小寫敏感

11. 重啟數據庫

systemctl restart mysqld

12.創建庫名稱

13. 導入數據