What is a rollback?

A rollback is a process in which the database is restored to a previous state, typically due to an error, an issue with an application, or a user request. It involves undoing a set of transactions or changes that were made to the database since a specific point in time.

Rollbacks are often used as a safety net in case something goes wrong during a database operation. By reverting to a known good state, data integrity can be maintained and potential errors or inconsistencies can be corrected.

Rollbacks can be performed manually by administrators or automatically by the database management system. They are a common practice in database management to ensure data consistency and to prevent data loss.

Overall, rollbacks are an important tool in maintaining the integrity and reliability of a database system.