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Database LUW

A database LUW (also called a database transaction) is a non-separable sequence of database operations that ends in a database commit. The database LUW is either executed completely by the database system, or not at all. After a database LUW has been completed successfully, the database returns to a consistent status and a new database LUW is opened. If an error is discovered within a database LUW, all database changes made since the start of the database LUW can be canceled using a database rollback. The database is subsequently restored to the same status as before the start of the database LUW. Isolation levels are responsible for determining whether other users can perform reads on data modified in a database LUW, before a database commit is performed.

The ABAP statements used to execute database commits or database rollbacks explicitly are as follows:


Database Commit
Database Rollback
Isolation Levels