Backup process

We recommend a way to back up a MySQL or MariaDB database using the mysqldump dump command.

echo "SHOW DATABASES;" | sudo mysql

This command displays a list of your databases. Make sure you know which .sql file you need, and then simply run the following command to backup to the file.

sudo mysqldump example_database > $(date +"%F").sql

The command described above will back up the example_database to a file with a date ending in .sql. It is also possible to change the name of this file to any other, although saving the file name as a date will be useful if you accidentally delete an important row or column. Use date –help to learn about other ways to style your date.

Recovery

Here you need to find the .sql file that you created and run the following:

sudo mysql example_database < filename.sql

Migrating to MariaDB from MySQL

The first thing to do is back up each of your databases:

sudo mysqldump example_database > example_database.sql

After that, you will need to install MariaDB, which will replace MySQL, and restore your databases by following these steps for each database.

sudo mysql example_database < example_database.sql