× 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.


  1.  Home
  2. RPG400-L
  3. August 2007

Re: Defining datastructure with ExtName/LikeRec

Rory Hewitt wrote:
I believe you can use QUALIFIED with EXTNAME, so there's not much difference
in functionality. The newer way is to use LikeRec, but it's only really
better if you have record formats which have different *INPUT and *OUTPUT
fields (as with display file records, for instance).

You can do that with EXTNAME too. EXTNAME(myfile:myfmt:*INPUT).

Marco wrote:
One difference is about null capable fields.

A DS defined with EXTNAME also defines the relevant subfields as null capable.

Scott Klement wrote:
(Personally, I think LIKEREC was totally unnecessary, and wish they had just extended EXTNAME in the first place.)

Me too. Unofficially, of course. EXTNAME and LIKEREC have exactly the same functionality except that LIKEREC doesn't allow you to add more subfields. But that's not really a feature, since if you add more subfields to the EXTNAME structure, the original subfields still exactly match the I/O buffer.





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.