Uninstall MariaDB completely along with its dependencies from the Centos

 To uninstall MariaDB on CentOS 8, you can use the `yum` package manager. Follow these steps to uninstall MariaDB:

1. **Stop the MariaDB service**:

   Before uninstalling, it's better to stop the MariaDB service to avoid any issues. Open a terminal and run the following command:

   sudo systemctl stop mariadb

2. **Remove the MariaDB packages**:

   Once the service is stopped, you can proceed to remove the MariaDB packages using `yum`:

   sudo yum remove mariadb-server mariadb-client

3. **Remove data and configuration files (optional)**:

   By default, the package manager may not remove the MariaDB data and configuration files. If you want to remove them as well, run the following commands:

   sudo rm -rf /var/lib/mysql

   sudo rm -rf /etc/my.cnf

   Please be cautious while running the `rm` command, as it permanently deletes the files and directories.

4. **Clean up dependencies (optional)**:

   You can also clean up any unused dependencies to free up disk space:

   sudo yum autoremove

That's it! MariaDB should now be uninstalled from your CentOS 8 system. Before performing these steps, make sure to back up any important databases to prevent data loss.