加入收藏 | 设为首页 | 会员中心 | 我要投稿 李大同 (https://www.lidatong.com.cn/)- 科技、建站、经验、云计算、5G、大数据,站长网!
当前位置: 首页 > 站长学院 > MySql教程 > 正文

Mysql必读MySQL修改root账号密码的方法

发布时间:2020-12-12 03:12:29 所属栏目:MySql教程 来源:网络整理
导读:《Mysql必读MySQL修改root账号密码的方法》要点: 本文介绍了Mysql必读MySQL修改root账号密码的方法,希望对您有用。如果有疑问,可以联系我们。 MYSQL必读 MySQL数据库中如何修改root用户的密码呢?下面总结了修改root用户密码的一些方法 MYSQL必读 1: 使用

《Mysql必读MySQL修改root账号密码的方法》要点:
本文介绍了Mysql必读MySQL修改root账号密码的方法,希望对您有用。如果有疑问,可以联系我们。

MYSQL必读MySQL数据库中如何修改root用户的密码呢?下面总结了修改root用户密码的一些方法

MYSQL必读1: 使用set password语句修改

MYSQL必读
mysql> select user();
+----------------+
| user()  |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.08 sec)
 
mysql> set password=password('123456');
Query OK,0 rows affected (0.00 sec)
 
mysql> flush privileges;
Query OK,0 rows affected (0.00 sec)
 
mysql> exit

MYSQL必读

MYSQL必读2: 更新mysql数据库的user表

MYSQL必读
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> update user set password=PASSWORD('QwE123') where user='root';
Query OK,4 rows affected (0.03 sec)
Rows matched: 4 Changed: 4 Warnings: 0
 
mysql> flush privileges;
Query OK,0 rows affected (0.00 sec)
 
mysql> quit

MYSQL必读

MYSQL必读3:使用mysqladmin命令修改

MYSQL必读命令一般为 mysqladmin -u root -p'oldpassword' password newpass 如下所示:

MYSQL必读
[root@DB-Server ~]# mysqladmin -u root -p'123456' password 'Qwe123'
Warning: Using a password on the command line interface can be insecure.

MYSQL必读验证root密码修改是否成功

MYSQL必读
[root@DB-Server ~]# mysqladmin -u root -p'123456' password 'Qwe123'
Warning: Using a password on the command line interface can be insecure.

MYSQL必读
?

MYSQL必读上面都是在知道root密码的情况下修改root密码,如果忘记了root密码,如何修改root的密码呢?

MYSQL必读1:首先停掉MySQL服务

MYSQL必读
[root@DB-Server ~]# service mysql stop
Shutting down MySQL..[ OK ]
[root@DB-Server ~]# 

MYSQL必读

MYSQL必读
[root@DB-Server ~]# /etc/rc.d/init.d/mysql stop
Shutting down MySQL..[ OK ]

MYSQL必读2:然后使用mysqld_safe命令启动mysql,更新root账号的密码

MYSQL必读??? --skip-grant-tables:不启动grant-tables(授权表),跳过权限控制.

MYSQL必读??? --skip-networking :跳过TCP/IP协议,只在本机访问(这个选项不是必须的.可以不用)是可以不用

MYSQL必读
[root@DB-Server ~]# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
[1] 5145
You have new mail in /var/spool/mail/root
[root@DB-Server ~]# 150709 14:10:53 mysqld_safe Logging to '/var/lib/mysql/DB-Server.localdomain.err'.
150709 14:10:53 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
 
[root@DB-Server ~]# mysql -u root mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
 
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.6.20-enterprise-commercial-advanced MySQL Enterprise Server - Advanced Edition (Commercial)
 
Copyright (c) 2000,2014,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> show databases;
+--------------------+
| Database  |
+--------------------+
| information_schema |
| mysql  |
| performance_schema |
| test  |
+--------------------+
4 rows in set (0.00 sec)
 
mysql> use mysql
Database changed
mysql> UPDATE user SET password=PASSWORD("Qwe123") WHERE user='root'; 
Query OK,4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnings: 0
 
mysql> flush privileges;
Query OK,0 rows affected (0.00 sec)
 
mysql> exit
Bye

MYSQL必读3:重新启动MySQL服务.

MYSQL必读以上所述就是本文的全部内容了,希望大家能够喜欢

(编辑:李大同)

【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容!

    推荐文章
      热点阅读