Mysql – Access denied for user ‘root@localhost’ (using password:NO)

MySQLmysql-error-1045Wordpress

I'm new to MySQL, I'm trying to run WordPress in my Windows desktop and it needs MySQL.

I install everything with Web Platform Installer which is provided by Microsoft. I never set a root password for MySQL and in the final step of installing WordPress, it asks for a MySQL server password.

What is the default password for root (if there is one) and how to change it?

I tried:

mysql -u root password '123'

But it shows me:

Access denied for user 'root@localhost' (using password:NO)

After this I try:

mysql -u root -p

However, it asks for a password which I don't have.

Update: as Bozho suggested, I did the following:

  1. I stopped the MySQL Service from Windows services
  2. Opened CMD
  3. Changed the location to c:\program files\mysql\bin

  4. Executed the command below

    mysqld --defaults-file="C:\\program files\\mysql\\mysql server 5.1\\my.ini" --init-files=C:\\root.txt

  5. The command ran with a warning about character set which I mentioned below

  6. I start the MySQL service from Windows services

  7. I write in the command line

    mysql -u root -p
    EnterPassword: 123 // 123 was the password

  8. The command line shows the following error

    Access denied for user 'root@localhost' (using password:**YES**)

How do I solve this? I'm waiting to hear from you.

Best Answer

for this kind of error; you just have to set new password to the root user as an admin. follow the steps as follows:

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

  1. Stop the service/daemon of mysql running 

    [root ~]# service mysql stop   
mysql stop/waiting

  2. Start mysql without any privileges using the following option; This option is used to boot up and do not use the privilege system of MySQL.

    [root ~]# mysqld_safe --skip-grant-tables &

At this moment, the terminal will seem to halt. Let that be, and use new terminal for next steps.

  1. enter the mysql command prompt 

    [root ~]# mysql -u root
mysql>

  2. Fix the permission setting of the root user ;

    mysql> use mysql;
Database changed
mysql> select * from  user;
Empty set (0.00 sec)
mysql> truncate table user;
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
mysql> grant all privileges on *.* to root@localhost identified by 'YourNewPassword' with grant option;
Query OK, 0 rows affected (0.01 sec)

*if you don`t want any password or rather an empty password 

    mysql> grant all privileges on *.* to root@localhost identified by '' with grant option;
    Query OK, 0 rows affected (0.01 sec)*
    mysql> flush privileges;
    Query OK, 0 rows affected (0.00 sec)

Confirm the results:

    mysql> select host, user from user;
+-----------+------+
| host      | user |
+-----------+------+
| localhost | root |
+-----------+------+
1 row in set (0.00 sec)

  1. Exit the shell and restart mysql in normal mode.

    mysql> quit;
[root ~]# kill -KILL [PID of mysqld_safe]
[root ~]# kill -KILL [PID of mysqld]
[root ~]# service mysql start

  2. Now you can successfully login as root user with the password you set 

     [root ~]# mysql -u root -pYourNewPassword 
 mysql>
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