首先让我提一下，我已经看了很多建议的问题，但没有找到相关的答案。这就是我正在做的。
我连接到Amazon EC2实例。我可以用这个命令登录MySQL根目录:
mysql -u root -p
然后我用host %创建了一个新的用户帐单
CREATE USER 'bill'@'%' IDENTIFIED BY 'passpass';
授予用户bill的所有权限:
grant all privileges on *.* to 'bill'@'%' with grant option;
然后我退出root用户，尝试用bill登录:
mysql -u bill -p
输入正确的密码并得到以下错误:
错误1045(28000):用户“账单”@“localhost”(使用密码:YES)的访问被拒绝
当前回答
I discovered yet another case that appears on the surface to be an edge case; I can export to the file system, via SELECT INTO .. OUTFILE as root, but not as regular user. While this may be a matter of permissions, I've looked at that, and see nothing especially obvious. All I can say is that executing the query as a regular user who has all permissions on the data base in question returns the access denied error that led me to this topic. When I found the transcript of a successful use of SELECT INTO … OUTFILE in an old project, I noticed that I was logged in as root. Sure enough, when I logged in as root, the query ran as expected.
其他回答
省得你自己头疼……您的问题可能是口令周围没有引号。至少我的案子绕了我三个小时。
[client]
user = myusername
password = "mypassword" # <----------------------- VERY IMPORTANT (quotes)
host = localhost
http://dev.mysql.com/doc/refman/5.7/en/option-files.html
搜索“这是一个典型的用户选项文件:”，看看他们在那里陈述的例子。祝你好运，我希望能为别人节省一些时间。
如果您忘记密码或想修改密码。你可以遵循以下步骤:
1 :stop your mysql [root@maomao ~]# service mysqld stop Stopping MySQL: [ OK ] 2 :use “--skip-grant-tables” to restart mysql [root@mcy400 ~]# mysqld_safe --skip-grant-tables [root@cy400 ~]# Starting mysqld daemon with databases from /var/lib/mysql 3 : open a new window and input mysql -u root [root@cy400 ~]# mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. 4 : change the user database 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 5 : modify your password your new password should be input in "（）" mysql> update user set password=password('root123') where user='root'; Query OK, 3 rows affected (0.00 sec) Rows matched: 3 Changed: 3 Warnings: 0 6 : flush mysql> flush privileges; 7: quit mysql> quit Bye 8: restart mysql [root@cy400 ~]# service mysqld restart; Stopping MySQL: [ OK ] Starting MySQL: [ OK ]
宾果!你可以用用户名和新密码连接你的数据库:
[root@cy400 ~]# mysql -u root -p <br>
Enter password: admin123 <br>
Welcome to the MySQL monitor. Commands end with ; or \g. <br>
Your MySQL connection id is 2 <br>
Server version: 5.0.77 Source distribution <br>
Type 'help;' or '\h' for help. Type '\c' to clear the buffer. <br>
mysql> quit <br>
Bye
我希望你在mysql中删除debian-sys- maintenance用户没有造成更大的损害
让你的mysql守护进程正常运行。启动mysql客户端，如下所示
mysql -u debian-sys-maint -p
在另一个终端，cat /etc/mysql/debian.cnf文件。该文件包含密码;当提示输入密码时，粘贴该密码。
http://ubuntuforums.org/showthread.php?t=1836919
这是以下两者之间的区别:
CREATE USER 'bill'@'%' IDENTIFIED BY 'passpass';
and
CREATE USER 'bill'@'localhost' IDENTIFIED BY 'passpass';
检查:
mysql> select user,host from mysql.user;
+---------------+----------------------------+
| user | host |
+---------------+----------------------------+
| bill | % | <=== created by first
| root | 127.0.0.1 |
| root | ::1 |
| root | localhost |
| bill | localhost | <=== created by second
+---------------+----------------------------+
命令
mysql -u bill -p
隐式访问'bill'@'localhost'，而不是'bill'@'%'。
“bill”@“localhost”没有权限
你会得到错误:
ERROR 1045 (28000): Access denied for user 'bill'@'localhost' (using password: YES)
解决问题:
CREATE USER 'bill'@'localhost' IDENTIFIED BY 'passpass';
grant all privileges on . to 'bill'@'localhost' with grant option;
我有类似的问题，因为我的密码包含“;”字符破坏我的密码时，我第一次创建它。如果对你有帮助，请谨慎使用。
