VALUE(TRIP_PERIOD) LIKE PTRV_PERIO-PERIO
REFERENCE(PERIO) TYPE PTRV_PERIO-PERIO
REFERENCE(PERIO) LIKE PTP42-PERIO
VALUE(PERIOD) TYPE PTRV_PERIO-PERIO
VALUE(PERIO_NUMBER) LIKE PTRV_PERIO-PERIO DEFAULT 0
REFERENCE(PERIO) LIKE PTP42-PERIO OPTIONAL
REFERENCE(CANCELLED_PERIOD) LIKE PTP42-PERIO
REFERENCE(PERIOD_NUMBER) LIKE PTP40-PERIO
VALUE(PERIODNUMBER) LIKE PTP42-PERIO
VALUE(PERIONUMBER) LIKE PTP40-PERIO
REFERENCE(PERIO_NO) LIKE PTP42-PERIO DEFAULT '000'