MySQL:
MySQL is a full-featured Relational Database Management System(RDBMS) that plays with the Oracle DB and Microsoft’s SQL Server. MySQL is sponsored by the Swedish company MySQL AB, which is owned by Oracle Corp. However, the MySQL source code is freely available because it was originally developed as freeware. MySQL is written in C and C++ and is compatible with all major operating systems
What is MySQL Root Password:
There is no default password for MySQL database server. You need to assign a root password after installing it. Some administrators set the root password same as the server root password.
The full path to the hidden file containing the MySQL Root Password:
MySQL Root Credentials can be stored in a local file and that can be accessed only by the root user. Once connected to the server as root via SSH, the MySQL Root Password can be viewed by running the command /root/.my.cnf