× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



But then you'd have to have OVRDBF FILE(PFILE1) TOFILE(LFILE1)

A coworker seems to think that they are remnants of a time before libraries existed. Like when was that?!
The original command would have been perhaps OVRDBF FILE(MYFILE) TOFILE(MY.FILE). Subsequently, the '.' have been taken out.







-----Message d'origine-----
De : midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] De la part de Loyd Goodbar
Envoyé : jeudi 2 septembre 2010 14:17
À : Midrange Systems Technical Discussion
Objet : Re: OVRDBF FILE(myfile) TOFILE(myfile)

One reason may be to force the use of a particular logical file.

For instance, an RPG program is coded over PFILE1. Later, a
logical file
LFILE1 is created with keys matching the RPG program's logic.
Instead of changing the RPG program to use LFILE1, perform an
override instead.
Assuming PFILE1 and LFILE1 have the same format level
identifier, no change is required to the RPG program and you
gain a performance increase due to the access path.

Note, for SQL RPGLE programs, overriding a file to take
advantage of indexes is unnecessary. As long as the RPG
program's SQL references the base table, the SQL runtime will
use any new indexes automatically.

Does the FILE() parameter have a library, such as
FILE(OTHERLIB/LFILE1)?
Cross-library logical files are not a best practice, but
sometimes happens if management requires a strict separation
between vendor code and in-house code.

--Loyd

On Thu, Sep 2, 2010 at 3:50 AM, David FOXWELL
<David.FOXWELL@xxxxxxxxx>wrote:

All,

I'm seeing a lot of old clp's doing this command before
calling an rpg
program. There are ovrdbf's for each of the files specified
in the rpg.
Can anyone explain the reason for doing this?


--
This is the Midrange Systems Technical Discussion
(MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting,
please take
a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion
(MIDRANGE-L) mailing list To post a message email:
MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change
list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting,
please take a moment to review the archives at
http://archive.midrange.com/midrange-l.


As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow-Ups:
Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.