The Start-Transaction webject creates a new transaction. Following Start-Transaction, all database modifications made by webjects with the same SESSION_ID parameter value as the Start_Transaction webject are part of the same transaction.

A transaction remains open until either a Commit-Transaction or Rollback-Transaction webject is invoked with the same SESSION_ID parameter. In addition, the Rollback-Transaction webject can be used to roll the transaction back explicitly. More than one transaction can be created within a session, and the transactions can be nested.