What is rollback log in SAP BC-DB - Database Interface, Database Platforms?

SAP Term: rollback log

• Component: BC-DB

• Component Name: Database Interface, Database Platforms

• Description: Log for a database rollback. To perform a database rollback, a database system must generate a copy of each database object before making a change to this object. These copies are kept in a rollback log until the end of a database LUW.

Smart SAP Assistant

• Key Concepts: 
  A rollback log is a feature of the SAP database interface (BC-DB) that allows for the undoing of changes made to the database. It is used to ensure data integrity and consistency in the event of an unexpected system failure or other error. The rollback log stores information about all changes made to the database, allowing them to be undone if necessary. 
  
  How to use it: 
  The rollback log is enabled by default in SAP systems and does not require any additional configuration. When a change is made to the database, the rollback log records the change and stores it in a separate file. If an error occurs, the rollback log can be used to undo the changes and restore the database to its previous state. 
  
  Tips & Tricks: 
  It is important to regularly check and maintain the rollback log to ensure that it is working properly. The size of the rollback log should also be monitored, as it can become large over time and may need to be cleared out periodically. 
  
  Related Information: 
  The rollback log is closely related to other features of SAP such as transaction logs and change logs. Transaction logs record all changes made to the database, while change logs record only those changes that have been committed. Both of these features can be used in conjunction with the rollback log for greater data integrity and consistency.