MySQL mysql忘記root密碼

①　# vim /etc/my.cnf

在[mysqld]下新增skip-grant-tables，然後儲存並退出

②　重啟mysql服務：service mysqld restart

③　執行　mysql 命令進入資料庫，修改資料庫密碼

mysql> update mysql.user set password=password('新密碼') where user='root';

mysql> flush privileges;

④　把/etc/my.cnf中的skip-grant-tables注釋掉，然後重啟mysql，

即：service mysqld restart

⑤　下面就可以用root新的密碼登入了

[root@ops04 scripts]# vim /etc/my.cnf

[root@ops04 scripts]# service mysqld restart
restarting mysqld (via systemctl):                         [  ok  ]
[root@ops04 scripts]# 
[root@ops04 scripts]# mysql
welcome to the mariadb monitor.  commands end with ; or \g.
your mariadb connection id is 4
server version: 10.1.22-mariadb mariadb server
type 'help;' or '\h' for help. type '\c' to clear the current input statement.
mariadb [(none)]> 
mariadb [(none)]> set password=password('000000');
error 1290 (hy000): the mariadb server is running with the --skip-grant-tables option so it cannot execute this statement
mariadb [(none)]> update mysql.user set password=password('000000') where user='root';
query ok, 4 rows affected (0.00 sec)
rows matched: 4  changed: 4  warnings: 0
mariadb [(none)]> flush privileges;
query ok, 0 rows affected (0.00 sec)
mariadb [(none)]> exit
bye[root@ops04 scripts]# vim /etc/my.cnf
[root@ops04 scripts]# service mysqld restart
restarting mysqld (via systemctl):                         [  ok  ]
[root@ops04 scripts]# 
[root@ops04 scripts]# mysql -uroot -p000000
welcome to the mariadb monitor.  commands end with ; or \g.
your mariadb connection id is 4
server version: 10.1.22-mariadb mariadb server
type 'help;' or '\h' for help. type '\c' to clear the current input statement.
mariadb [(none)]>

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