× 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.



The reality is, if you MUST support null capable fields in RPG,
you must ALWAYS check the null indicator before you EVER
access the field in question.

Well, that's true in most languages. It's very common to code:

if (theField == null)
DoThis();
else
DoThat();

or

if (theDateField != null)
theScreenField = FormatTheDate(theDateField);

Did you know that even a null field will still return a valid
value during a fetch?

Eh???? OK, I can see how that would happen, but in my opinion (not that
Rochester asked) that's simply a half-baked implementation, and
basically a bad design.

-Walden


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.