- 停业务服务。
- 备份数据
- 停库
# systemctl stop mysqld
-
修改配置
-
删文件：
# rm /var/lib/mysql/* -rf
- 启动：
# systemctl start mysqld
- 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)
- 修改密码
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '密码';
Query OK, 0 rows affected (0.00 sec)
- 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
- 导入数据
