In this example, a batch process executes once a month to clear the source database of accumulated data. At the beginning of the transaction, typically a batch transaction, a record is written to a special job table to indicate that the batch job is starting. TRANSACTION is used with IGNORE to specify that the entire transaction must be ignored by Extract, because the target system does not need to reflect the deleted records. By ignoring the work on the Extract side, unnecessary trail and network overhead is eliminated.

TABLE source.job, FILTER (@streq (job_type = 'HOUSEKEEPING')=1), &
EVENTACTIONS (IGNORE TRANSACTION);