这篇文章主要介绍了MySQL如何进行密码管理，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

1. mysql安装后默认没有密码，初始化安装后默认密码登录，需要马上修改root密码。
[root@mysql ~]# cat /root/.mysql_secret  
 –查看root账号密码
# The random password set for the root user at
Tue Dec 13 18:59:06 2016 (local time): 7MhtyX3aZEl9OUf8
[root@mysql ~]# mysql -uroot -p    — 登录mysql
Enter password:        
      –（此处复制粘贴
7MhtyX3aZEl9OUf8）
Welcome to the MySQL monitor.  Commands end
with ; or g.
Your MySQL connection id is 2
Server version: 5.6.25
Copyright (c) 2000, 2015, 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.
说明：  出现mysql>
  表示一切顺利成功。

2.  修改密码
mysql> SET PASSWORD = PASSWORD('123456');
  –设置密码为123456
[root@mysql etc]# mysql -uroot -p123456  
  –修改密码后，登录
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 39
Server version: 5.6.25 MySQL Community Server
(GPL)
mysql>     –登录成功

3. 忘记mysql数据库root的密码后，如何修改密码。
[root@mysql etc]# service mysql stop   –停止mysql进程
Shutting down MySQL…. SUCCESS! 
[root@mysql etc]# mysqld_safe
–skip-grant-tables&  –启动mysql时不启动grant-tables，授权表。执行后出现下面画面，另起一个新会话。
[1] 3574
[root@mysql etc]# 161215 06:13:53 mysqld_safe
Logging to '/var/lib/mysql/mysql.err'.
161215 06:13:53 mysqld_safe Starting mysqld
daemon with databases from /var/lib/mysql
[root@mysql ~]# ps -ef|grep mysql   –查看mysql进程是否起来
root       3467   3440
 0 05:29 pts/2    00:00:00 mysql -uandy -px xx
root       3574   2845
 0 06:13 pts/0    00:00:00 /bin/sh /usr/bin/mysqld_safe
–skip-grant-tables
mysql      3677   3574
 2 06:13 pts/0    00:00:00 /usr/sbin/mysqld –basedir=/usr
–datadir=/var/lib/mysql –plugin-
mysql> UPDATE user SET
password=PASSWORD('cccccc') WHERE user='root';   –更改root密码
Query OK, 4 rows affected (0.04 sec)
Rows matched: 4  Changed: 4  Warnings:
0
mysql> FLUSH PRIVILEGES;    –权限更新
Query OK, 0 rows affected (0.00 sec)
[root@mysql ~]# mysql -uroot -p123456  
 –使用旧密码登录，发现不行，说明密码已经更新
Warning: Using a password on the command line
interface can be insecure.
ERROR 1045 (28000): Access denied for user
'root'@'localhost' (using password: YES)
[root@mysql ~]# mysql -uroot -pcccccc   –新密码登录成功
Warning: Using a password on the command line
interface can be insecure.
Welcome to the MySQL monitor.  Commands end
with ; or g.
mysql>

感谢你能够认真阅读完这篇文章，希望小编分享的“MySQL如何进行密码管理”这篇文章对大家有帮助，同时也希望大家多多支持云，关注云行业资讯频道，更多相关知识等着你来学习!