Deleting concatenated segments

The following application program can be sensitive to either the concatenated segment—SOURCE=(DATA/DATA), (DATA/KEY), (KEY/DATA)—or the logical child, because it is the logical child that is either physically or logically deleted (depending on the path accessed) in all cases.

The concatenated segment relationships are shown in the following figure.

Figure 1. Concatenated segment relationships
SOURCE=(DATA/DATA):CUSTOMER with concatenated BORROW/LOANS. (DATA/KEY): CUSTOMER with child BORROW. (KEY/DATA): CUSTOMER with child LOANS.