MySQL Incremental Backup Explained

There are several methods for incremental backups in MySQL.

1. Binary log backup: In MySQL, the binary log records all changes made in the database, including insertions, updates, and deletions. By backing up the binary log files, the database can be restored to any point in time, achieving the effect of incremental backup.
2. Differential Backup: A differential backup refers to backing up all changes to data since the last full backup. When performing a differential backup, a full backup is done first and then only the changes since the last full backup are backed up. This method can reduce backup time and storage space consumption.
3. Incremental Backup: This type of backup only stores changes made since the last backup, unlike differential backup which stores changes made since the last full backup. Incremental backup helps save storage space but requires applying each incremental backup file during restoration.
4. Log Backup: In addition to binary logs, MySQL also has other types of logs such as transaction logs and error logs. By backing up these log files, you can restore the database to any point in time.

Depending on specific needs and backup strategies, one or more of the mentioned methods can be chosen for incremental backups of MySQL.