mysqldump -u root -p -all-databases > all-db.sql You can backup all your databases using the below single command.
So, If you have already running older MariaDB version, It’s recommended to take all databases backups before upgrading. MariaDB 10.2 has been released with various upgrades and configuration changes than previous releases. This article will help you to Install MariaDB in Ubuntu 18.04 and 16.04 LTS and Other Systems using the Apt package manager, For older version use Apt-get command. Use below links to read features comparison between MariaDB and MySQL MariaDB has a number of updated features over MySQL.
MariaDB can be a better choice for choice for database professionals looking for a robust, scalable, and reliable SQL server. MariaDB ia an enhanced, drop-in replacement for MySQL.