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I can not get a result searching the RPG manuals, so here goes:

In ILE COBOL I can open a file in a main entry module, and then access
it from other modules (without additional OPEN/CLOSE statements).  All I
have to do is specify EXTERNAL (Maybe GLOBAL?) on the FD line.  I'd like
to do the same in ILE RPG, but can not find any references to how to do
it.  For now I'm opening the file twice, once in the main entry point
program and again in the second module that is bound to it.

The program maintains a related set of files.  Right now both the main
module and secondary module need to access the secondary file.  What I'd
like to do is open the primary file in the primary module, and the
secondary file in the secondary module and code sub-procedures that I
can EXPORT to handle the data.  When I tried coding a sub-procedure in
the secondary module that was called by the primary, I got a file access
error.  




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