RE: Overrides within RPG-ILE

["Christopher A. Libby" <clibby@xxxxxxxxxxxxxxxxxxxxxx>]

Why the read to MBRS before the override?

---------------------------------------------------------
Christopher A. Libby, Programmer/Analyst
Maine Public Service Company (www.mainepublicservice.com)
clibby@mainepublicservice.com (207) 768-5811 ext. 2210


-----Original Message-----
From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
Behalf Of Scott Klement
Sent: Thursday, January 11, 2001 3:24 PM
To: RPG400-L@midrange.com
Subject: Re: Overrides within RPG-ILE




On Thu, 11 Jan 2001, Christopher A. Libby wrote:

> Hello all - somewhat simple question:
>
> Can & how do I perform an override within a RPG-ILE application?  I need
to
> dynamically override a database file to a specific member, based on the
> contents of a field from another file.  I am assuming I would need to code
> the overridden file with the USROPN keyword, and then open the file after
> overriding it and close before deleting the override.
>
> Thanks for the help - Chris

Assuming that by "RPG-ILE" you mean "RPG IV" or "ILE RPG/400", then
here is how I might do what you're requesting:

FMBRS      IF   E             DISK
FMYFILE    IF   E             DISK    USROPN

D Cmd             PR                  ExtPgm('QCMDEXC')
D  command                     200A   const
D  length                       15P 5 const

c                   read      MBRS                                   10
c                   dow       *in10 = *off

C                   callp     Cmd('OVRDBF FILE(MYFILE) MBR(' +
c                                   %trim(MbrName) + ')': 200)
c                   open      MYFILE
C* process MYFILE here
c                   close     MYFILE
c                   callp     Cmd('DLTOVR FILE(MYFILE)':200)

c                   read      MBRS                                   10
c                   enddo

c                   eval      *inlr = *on



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