Of Middle-Tested Loops
Hey, Ted:

I recently came across the Recursion and the Alternatives story that you wrote, which gives an example of a program that explodes a bill of material. I noticed that in this program, you used the following statement: DOW '1'. Can you explain what this means? I have been preaching the importance of readability in programs and this baffles me. READ MORE >

Use SQL to Easily Update Multi-Key Files
Hey, Ted

Updating a single record in a file that has a lot of key fields often requires SQL commands with complicated WHERE clauses. I use a technique with web applications that greatly simplifies the WHERE clause. I have never seen this technique published before, so I hope you can use it. READ MORE >

   Admin Alert: To Each Its Own in Spooled File Management
   by Joe Hertvik

Long-time OS/400 users understand that green screen commands can provide efficient ways to manage OS/400 objects, especially printouts. But smart administrators also know that IBM's iSeries Navigator graphical management tool can up the ante on spooled file management, providing additional flexibility not usually found on the green screen. This week, let's review OS/400's graphical and command-line functions for spool file management and see how they contrast and complement each other. READ MORE >

Reader Feedback and Insights

We value your feedback and insights. Feel free to send a letter to the editor. Letters may be printed, unless otherwise specified, and edited for clarity or length. READ MORE >

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Advanced Systems Concepts
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