mysql> use mysql; but ... ERROR 1044 (42000): Access denied for user '' @ 'localhost' to database 'mysql'

Question

Using mysql.exe, I enter the command mysql> use mysql; but there is an error:

ERROR 1044 (42000): Access denied for user '' @ 'localhost' to database 'mysql'

• What does this mean?
• How so I can access a mysql database?
• The most important thing is that I want to reset password mysql database, but an error occurs when I enter the command: mysql> use mysql;.

Answer 1

thanks all, finally I found this reset root password with wrong mysql config… and it works well for me :)

-Go to your xampp\mysql\bin\ folder
-Edit my.ini and insert skip-grant-tables below [mysqld]
-Restart MySQL
-Set new password for your root user by running UPDATE mysql.user SET Password=PASSWORD('new_password') WHERE User='root' in phpMyAdmin in the mysql database (or just leave it like this if MySQL cannot be accessed from remote hosts)

AndreKR

Answer 2

Grant all privileges to the user first ,

GRANT ALL PRIVILEGES ON *.* TO 'user'@'localhost' WITH GRANT OPTION;

Answer 3

Open MySQL interface (phpMyadmin) through browser then

1. click Users
2. check users with grant options if it is no then follow below steps
3. click->edit privileges (if user with 'no' grant option)
4. then select (global privileges) mark check all
5. continue these steps to all users

Answer 4

I got the same error below:

ERROR 1044 (42000): Access denied for user 'john'@'localhost' to database 'mysql'

When I tried to select mysql database(schema) by login with the user john as shown below:

use mysql

So, I gave all privileges on all the tables in mysql database(schema) (mysql.*) to the user john with GRANT by login with the user root as shown below, then I could solve the error:

GRANT ALL ON mysql.* TO 'john'@'localhost';

Or:

GRANT ALL PRIVILEGES ON mysql.* TO 'john'@'localhost';