HP 3000 Manuals HP 3000 Manuals
Chapter 4 File Description Specifications
The File Description Specification describes the general characteristics
of files used in a program. These characteristics include:
* The file name.
* The type of file (such as input, output, or combined).
* The size of the logical records in the file.
* The format of the records in the file (fixed-length or
variable-length).
* The class name of the device where the file resides (disk, tape,
or other media).
You must enter a File Description Specification for each file except
LDAFILE, RPGUDATE, and USWITCH files and those containing compile-time
tables and arrays, ALTSEQ records and file translation records.
If you're processing KSAM or TurboIMAGE files, you must also include one
or more File Description Continuation lines. The Continuation lines give
additional information about the file. File Description Continuation
lines are also discussed in this chapter. The HP RPG Programmer's Guide
contains a complete discussion of processing KSAM and TurboIMAGE files.
The File Description Specification is identified by an F in column 6:
___________________________________________________________________________________
| |
| 1 2 3 4 5 6 7 |
| 678901234567890123456789012345678901234567890123456789012345678901234|
| _______________________________________________________ |
| |
| F |
| |
| |
___________________________________________________________________________________
Figure 4-1. The File Description Specification