Transaction Processing

Transaction processing ensures data integrity for specific programs and tables. If a database error or server failure occurs while the system is committing records to the database, you must roll back all table updates related to the transactions from the database so that the system can maintain data integrity. Transaction processing enables the system to store data in a queue until issuing a commit command, at which time the system moves the data to the corresponding table.

The system creates boundaries for each process that is covered by transaction processing. A transaction boundary includes all data elements that constitute a transaction. When a database error or server failure occurs, the system generates a work flow message indicating that the system has returned to its original state before the failure occurred.