× 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. December 2017

Re: 5250 and un-do

On 12/19/2017 10:46 AM, Henrik Rützou wrote:
Sorry I use K.I.S.S. and that means that every logical file includes all
fields in the PF they are build upon

I think that OP's problem of undo gets easier without Unit Record I/O to
work around.

and btw, for what purpose would one change the address through a logical
file without any other information
that the PF key, it simply dosn't make sense so it is a theoretical
situation just designed to overcomplicate things.

It /is/ a theoretical situation! The point was to gently move the mind
to a place where there is any architecture that avoids the problem of
update collision via Unit Record I/O. Once we see that such a thing is
possible, we can begin to think of practical ways to implement the idea.


As an Amazon Associate we earn from qualifying purchases.

This thread ...
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.