How can MySQL automatically backup itself?

There are multiple ways to automatically back up a MySQL database, here is one common method:

1. Create a backup script: You can write a backup script using command-line tools or scripting languages (such as Shell, Python, etc.). The script should include backup commands and related parameters. For example, use the mysqldump command to backup the database and save the backup file to a specified directory.
2. Schedule automatic tasks by setting up a cron job on Linux or using Task Scheduler on Windows to regularly run backup scripts.
3. Set up a backup strategy: Based on your needs, establish the frequency of backups and how long they should be kept. For instance, backup once a day and retain backup files for the latest 7 days.
4. Regularly test the backup and recovery process to ensure that backup files can successfully restore the database.

Additionally, third-party backup tools like XtraBackup, Percona, MyDumper, etc. can be used for MySQL database backups, offering more features and options.