Some redirection combinations present special problems due to the specific
characteristics of the device. In particular:
- You should not redirect save files.
- You can redirect nonsequentially processed database files only to another
database file or a DDM file.
- You can redirect Display files and ICF files that use multiple devices
(MAXDEV or MAXPGMDEV > 1) only to a display file or ICF file.
- Redirecting a display file to any other file type, or another file type to
a display file, requires that the program be recompiled with the override
active if there are any input-only or output-only fields. This is
necessary because the display file omits these fields from the record buffer
in which it does not use them, but other file types do not.
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