Data Division—File and Sort Description Entries
In a COBOL program, the File Description (FD) Entry (or Sort Description (SD) Entry for sort/merge files) represents the highest level of organization in the File Section.
The File Description (FD) Entry (or Sort Description (SD)
Entry) has six formats:
- Format 1 - Sequential File
- Format 2 - Diskette File
- Format 3 - Tapefile
- Format 4 - Printer File
- Format 5 - Sort or Merge Files
- IBM ExtensionIBM Extension Format 6 - Transaction File End of IBM ExtensionEnd of IBM Extension