MySQL Incremental Backup Guide

There are several methods to achieve incremental backups in MySQL.

1. Using MySQL binary logs: MySQL binary logs record all update operations of the database, including insertions, deletions, and modifications. By regularly backing up the binary logs, incremental backups can be achieved. During backup, only the new binary logs generated since the last backup need to be saved. During restoration, the full backup should be restored first, followed by the application of each incremental backup binary log.
2. There are incremental backup tools available for MySQL, such as MySQL Enterprise Backup and Percona XtraBackup. These tools use MySQL’s redo log to perform incremental backups, only needing to backup the new redo log files generated since the last backup.
3. Utilize third-party backup tools: In addition to MySQL’s built-in backup tool, you can also use some third-party backup tools like mysqldump, mydumper, etc. These tools can achieve incremental backups by comparing changes in data in the database. When backing up, you only need to backup the data that has changed since the last backup.

Regardless of the method used for incremental backup, it is necessary to regularly perform a full backup and then perform incremental backups on top of the full backup. This ensures the integrity and recoverability of the backup. Additionally, it is important to properly manage and store backup files during incremental backups to avoid the loss or damage of backup data.