Re: System36 File Access in a Procedure

["Booth Martin" <booth@xxxxxxxxxxxx>]

I wasn't being flippant with my reply.  Once you have done one or two file
switches to external from internal, it ceases to be a hard switch.  The only
issues I've run into is when a field is described differently from program
to program.  Sometimes even the length of a  field may be truncated in a
program because of report heading limitations or whatever. 
 
---------------------------------
Booth Martin
http://www.martinvt.com
---------------------------------
-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: 06/05/05 14:10:27
To: RPG programming on the AS400 / iSeries
Subject: Re: System36 File Access in a Procedure
 
>I an curious how much havoc would be created if you externally described
this file?
 
With the proper analysis this could be a great solution, but one needs to be
careful
of doing this quickly:
Check every program add/updating the file for creating possible decimal
errors.
Reorg and/or rename/rebuilds using s36 BLDFILE.
The ancient method of using #gsort to sort a file back into itself.
I'm all for making files native - just be careful.
jim
 
----- Original Message -----
From: "Booth Martin" <booth@xxxxxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Sunday, June 05, 2005 2:36 PM
Subject: RE: System36 File Access in a Procedure
 
 
I an curious how much havoc would be created if you externally described
this file?
 
---------------------------------
Booth Martin
http://www.martinvt.com
---------------------------------
-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: 06/05/05 13:27:52
To: RPG programming on the AS400 / iSeries
Subject: RE: System36 File Access in a Procedure
 
Thanks for both your replies
The subproc does not have any local variables, just using the I spec's
on the global definition.
As this coding will ultimately run on a clients V4.3 machine, I'm not
using a datastructure for the result of the chain.
Can a subproc have local I spec's?
I realise the S/36 file is irrelevant, just trying to provide more
information.
Many thanks.
Andy Youens | Senior IBM Consultant | formaserve systems ltd
http://www.formaserve.co.uk
-----Original Message-----
S/36 files are no different to any other program described file.  So
.......
Most likely cause is that you have local copies of the file's fields
defined
in the subproc but are not doing a read/chain with the DS as a result
field.
Unless you use the "into DS result" option, I/O will _always_ use the
global
fields.  If the same fields are defined in the subproc then the subproc
code
will see the local fields but not the data.
 
That would explain why changing it to a program works, since everything
is
then using the global variables.
 
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