MySQL redo undo binlog
时间: 2024-04-03 18:18:54 浏览: 77
MySQL的redo log、undo log、binlog
MySQL redo log is a feature that records all changes made to a database. It is used to recover data in the event of a system failure or crash. The redo log is a circular buffer that is constantly overwritten with new data.
MySQL undo log is a feature that records all the changes made to a database. It is used to rollback a transaction or undo a change made to a database.
MySQL binlog is a binary log that records all the changes made to a database. It is used to replicate data to other servers, backup data, and recover data in the event of a disaster.
Together, these features work to ensure the integrity and availability of data in a MySQL database. If there is a system failure or data corruption, the redo log and binlog can be used to recover data, while the undo log can be used to rollback transactions or undo changes made to the database.
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