Reader Feedback and Insights: Not All Hex Dumps Are Created Equal

November 1, 2002 Timothy Prickett Morgan

Hey, Ted:

I have a comment about the use of the Display File (DSPF) command to view a file in hexadecimal format .

This may or may not be obvious: DSPF can show any file, but the hex view is not of what is in the underlying file.

Rather, it’s comprised of what DSPF has converted the file to for presentation purposes.

Normally, I’m interested in the actual stored value when using hex views and not mapped values.

To illustrate what I’m talking about, I copied a CL source member to the Integrated File System (IFS), specifying a UCS2 target

Help with RPG II Programs

November 1, 2002 Timothy Prickett Morgan

Hey, Ted:

I know you and the other Guild Companies editors cover a lot of the new stuff in Midrange Guru, so you may not want to address my problem. I have never even seen a System/36, yet I have to maintain some old S/36 code. I am getting the hang of OCL, but trying to work with RPG II after years of RPG III and RPG IV is driving me nuts. The worst part of it is trying to keep up with so many indicators. Do you have any sage advice for me?

— Brad

My earliest production

You Can’t Get There from Here

November 1, 2002 Timothy Prickett Morgan

Hey, Howard:

I have a file on my AS/400 that contains flight segments. I need to identify all jobs by departing and final destination airport codes. The file is keyed by our job number and could have from one to four records per job number. It would be easy if every flight was direct, as the departure and destination codes would be on the same record. When the departure and final destination codes are on different records, that makes a search difficult.

The file details the date of a flight, the departure city, arrival city, flight number, sequence, and a