Data Division

The Data Division is divided into four sections:
File Section
Describes externally stored data (including sort-merge files).
Working-Storage Section
Describes internal data.
Local-Storage Section
Describes internal data that is allocated on a per-invocation basis.
Linkage Section
Describes data made available by another program. It appears in the called program and describes data items that are provided by the calling program and are referred to by the called program. The called program can be a nested program.