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MySQL 5.6 : Access denied for user 'root' @ 'localhost' when password contains backslash


MySQL 5.6 : Access denied for user 'root' @ 'localhost' when password contains backslash

By : Miguel Hernandez
Date : November 22 2020, 01:01 AM
Hope this helps I figured the issue: my password contained the character \. Typing the password without this character worked. This is apparently due to a character encoding problem. – Vince
code :


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

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


By : Emanuele Mazzola
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I've solved this error. I'm posting this because someone could have encounter the same thing as me.
The problem lies with the data source. Apparently something happen during the creation of data source. The password parameter is missing. So I deleted the current data source and created a new one again and the problem is solved.
MySQL: Access denied for user 'root@localhost' (using password:NO)

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


By : user3132791
Date : March 29 2020, 07:55 AM
Does that help Here are the solutions that I tried;
I tried changing the root password for the root user by running the code below in my terminal
code :
mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
FLUSH PRIVILEGES;
quit;
sudo mysql -u root
DROP USER 'root'@'localhost';
CREATE USER 'root'@'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%';
FLUSH PRIVILEGES;
quit;
SHOW VARIABLES LIKE 'validate_password%';
SET GLOBAL validate_password_policy = 0;
sudo systemctl stop mysql
sudo systemctl start mysql
default: &default
  adapter: mysql2
  encoding: utf8
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  username: root
  password:
  socket: /var/run/mysqld/mysqld.sock
default: &default
  adapter: mysql2
  encoding: utf8
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  username: root
  password: mypassword
  socket: /var/run/mysqld/mysqld.sock
ASP.NET MVC MySQL Access denied for user 'root'@'localhost' (using password: NO)

ASP.NET MVC MySQL Access denied for user 'root'@'localhost' (using password: NO)


By : user3460745
Date : March 29 2020, 07:55 AM
help you fix your problem I believe the code was pretty easy to follow, also what I wanted to do, but I understand that more experienced programmers may have considered it incomplete now.
What I was trying to do was to save data, and was unable to, due to an access denied type of error, which I think comes from the way Visual Studio handles the projects that can be added as SQL server projects, which I couldn't do with a MySQL project (in the tutorial I was following, he copied the string from the server explorer project he added and then pasted it in connectionString on web.config, which clearly didn't work for me), I also learnt my lesson about the GetConnectionString() method, which wasn't explained in my question, that's why it was voted for closing the question, but I knew it was working (maybe was not doing what it was supposed to, though; I got rid of it), still, perhaps the problem was there.
code :
public static void SavedData(int _SomeField)
{

    FooModel data = new FooModel
    {
        SomeField = _SomeField
    };

    MySqlConnection dbConnection;

    MySqlConnectionStringBuilder connectionBuilder = new MySqlConnectionStringBuilder();

    connectionBuilder.Server = "localhost";
    connectionBuilder.UserID = "root";
    connectionBuilder.Password = "password";
    connectionBuilder.Database = "foo";

    dbConnection = new MySqlConnection(connectionBuilder.ToString());


    String query = String.Format("insert into foo.foo (SomeField) values ('{0}')", @data.SomeField);

    dbConnection.Open();

    MySqlCommand cmd = new MySqlCommand(query, dbConnection);

    cmd.ExecuteNonQuery();

    dbConnection.Close();

}
Failed to connect to mysql at 127.0.0.1:3306 with user root access denied for user 'root'@'localhost'(using password:YES

Failed to connect to mysql at 127.0.0.1:3306 with user root access denied for user 'root'@'localhost'(using password:YES


By : BugFix
Date : March 29 2020, 07:55 AM
wish of those help First check if it's a workbench or connection problem.
1) In your windows run 'cmd' to open a terminal
mysql Access denied for user root@localhost (using password: NO) despite having set a password and entered it in connect

mysql Access denied for user root@localhost (using password: NO) despite having set a password and entered it in connect


By : Julian Strom
Date : March 29 2020, 07:55 AM
wish helps you I ran into this problem and solved it by entering the db shell and telling mysql to use the mysql_native_password authentication plugin to authenticate your database. This is an older plugin and it's probably worth looking for a newer one that's also compatible with Python's mysql connect driver, but this is the only way I could get it to work.
ALTER USER 'user_name'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password123'
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