Mysql8.0.12修改普通用户密码

问题

在使用mysql普通用户登录时，出现如下问题：

[root@myHost ~]# mysql -u myusername
ERROR 1045 (28000): Access denied for user 'myusername'@'localhost' (using password: NO)

原因

从报错中可以看出，密码有问题。

解决

这里通过root账号修改普通用户的方法，解决普通用户不能登录的问题。

[root@myHost~]# mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 33
Server version: 8.0.12 MySQL Community Server - GPL

Copyright (c) 2000, 2018, 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> 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> SET PASSWORD FOR 'myusername'@'localhost' = 'MyPassWord';
Query OK, 0 rows affected (0.10 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)

mysql> exit