mysql單實例忘記密碼如何登錄過程

                  mysql單實例root密碼找回方法：
a 中止mysql服務
  

[root@db02 data]# /etc/init.d/mysqld stop

Shutting down MySQL.. SUCCESS! 

b 使用--skip-grant-tables啓動mysql，忽略受權登陸驗證

[root@db02 data]# mysqld_safe --skip-grant-tables --user=mysql >/dev/null 2>&1 &

[1] 30246

c 登陸mysql，修root密碼

[root@db02 data]# mysql

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.6.34 Source distribution

 

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

 

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

mysql> UPDATE mysql.user SET password=PASSWORD("123") WHERE user='root' and host='localhost';

Query OK, 0 rows affected (0.00 sec)

Rows matched: 1  Changed: 0  Warnings: 0

 

mysql> flush privileges;

Query OK, 0 rows affected (0.01 sec)

 

d 退出mysql，而且從新啓動mysql

mysql> quit

Bye

[root@db02 data]# /etc/init.d/mysqld stop

Shutting down MySQL.. SUCCESS!

[1]+  Done                    mysqld_safe --skip-grant-tables --user=mysql > /dev/null 2>&1

[root@db02 data]# /etc/init.d/mysqld start

Starting MySQL. SUCCESS! 

E 進行登錄查看

[root@db02 data]# mysql -uroot -p123

Warning: Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.6.34 Source distribution

 

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

 

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

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