MySQL8修改密码

1. 修改my.inf#

[root@VM-12-15-centos ~]# vim /etc/my.cnf

添加如下

skip-grant-tables

2. 重启MySQL服务#

[root@VM-12-15-centos ~]# systemctl restart mysqld
[root@VM-12-15-centos ~]# mysql -uroot -p

输入密码时直接回车

3. 修改密码#

mysql> use mysql;
mysql> update user set authentication_string = '' where user="root";
mysql> flush privileges;
mysql> quit

然后再次修改my.inf，注释掉skip-grant-tables，再次重启MySQL服务（即重复第2步），输入密码时直接回车。
接着如下操作

mysql> use mysql;
mysql> alter user 'root'@'localhost' identified by '你的密码';
mysql> flush privileges;
mysql> quit

至此，密码修改完毕。

注：博主plugin字段为mysql_native_password

mysql> select plugin from user where user='root';
+-----------------------+
| plugin                |
+-----------------------+
| mysql_native_password |
+-----------------------+
1 row in set (0.00 sec)