错误信息：ERROR 1044: Access denied for user: '@localhost' to database 'mysql'
linux下解决方案：
mysql> use mysql
ERROR 1044 (42000): Access denied
for
user
'root'
@
'localhost'
to
database
'mysql'
mysql> exit
Bye
[root@testtest ~]# service mysqld stop如果该命令不能执行可以用如下命令
#
mysql5.0.45/bin/mysqladmin -u root shutdown
Stopping mysqld: [ OK ]
[root@testtest ~]# mysqld_safe
--user=mysql --skip-grant-tables --skip-networking &
[root@testtest ~]# mysql -u root -p -hlocalhost
Enter
password
:
mysql> use mysql
mysql>
SELECT
host,
user
,
password
,Grant_priv,Super_priv
FROM
mysql.
user
;
mysql>
UPDATE
mysql.
user
SET
Grant_priv=
'Y'
, Super_priv=
'Y'
WHERE
User
=
'root'
;
mysql> FLUSH
PRIVILEGES
;
mysql>
GRANT
ALL
ON
*.*
TO
'root'
@
'localhost'
;
mysql>
GRANT
ALL
ON
*.*
TO
'root'
@
'cn.cn.cn.cn'
;
mysql>
GRANT
ALL
ON
*.*
TO
'root'
@
'245.245.245.245'
;
mysql>
GRANT
ALL
ON
*.*
TO
'root'
@
'127.0.0.1'
;
mysql> FLUSH
PRIVILEGES
;
mysql> quit
Bye
[root@testtest ~]# service mysqld start 或者mysql目录下
./bin/mysqld_safe --user=mysql &