You just installed MySQL or MariaDB and you receive this error:
Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges. How to solve it? In many websites there are a lot of different approaches and solutions, often with 5 or more steps to do.
A working solution for old systems is to execute
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
if you get:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'BY 'password'' at line 1 ... then your version of MariaDB is not compatible with this solution.
In this case is better to use
sudo mysql ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password USING PASSWORD('password');` this should correctly reset your password.