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In This Issue
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Less Theory. More Hands-On Programming, Advice, and Code.
Sponsored By
 T.L. ASHFORD
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BARCODE400 by T.L. Ashford is the easiest, fastest way to create and print Compliance Labels directly from the AS/400 and iSeries.
Ashford's comprehensive library of Compliance formats is available to Barcode400 users. AIAG labels for Ford and Motorcraft, GM, and many more are available.
BARCODE400 is backed by the best Technical Support Team in the industry.
FREE Guide to
Bar Code Labeling
www.tlashford.com
or call 800.541.4893
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Sponsored By
 ASNA
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Create Web, Windows & Wireless
apps now! How?
Companies from Barnes & Noble to Roto-Rooter use ASNA Visual RPG for fast and easy Web, Windows and Wireless development. Check out their stories and those of more than 75 others to see how they deployed applications in just weeks that produced a huge return-on-investment. See how you can too when you download your FREE copy of Visual RPG today.
Download your free copy of
ASNA Visual RPG today!
www.asna.com
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The Valuable NULL
by Michael Sansoterra
Nil, Nada, and NULL: One of these terms is of great benefit to the database programmer; the others are worthless. Coming from the "old school" world of flat files, COBOL and RPG, I had never heard of a NULL until I worked with Microsoft Access, in 1994. Later I came across NULLs on the iSeries. While I found NULLs problematic at first, I eventually found them to be a valuable aid in database development. If NULLs exhibit behavior that amuses or confuses you, read on to find out what NULLs are good for and how they operate. READ MORE >
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Measuring Performance from the Java Side
by Marc Logemann
Achieving good performance is critical in each software project. This article will focus on JDBC performance measuring and will cover how you can check the speed of selected code blocks. All this from the Java perspective, without the need to use any iSeries tools. The tools used throughout this article are open source and free of charge. READ MORE >
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Sponsored By
 WORKSRIGHT SOFTWARE
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600 Billion
That's how much a recent independent study estimated U.S. businesses spend on dirty data. How much of that 600 billion is spent by your company? Cleanse you dirty ZIP Codes and mailing addresses with our software and save big bucks.
WorksRight Software, Inc.
Phone: 601-856-8337
E-mail: software@worksright.com
Web site: www.worksright.com
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Sponsored By
 PROFOUND LOGIC SOFTWARE
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Attention RPG Developers
Have you heard of the intuitive way to build iSeries Web Applications?
It's called RPGsp or RPG Smart Pages!
Click www.ProfoundLogic.com
to download the Powerful
Integrated Development Environment
specifically built for
RPG-based Web Development.
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Reading an IFS File from RPG
by Shannon O'Donnell
Building your RPG programming skills means that sometimes you have to do something other than code yet another 5250 subfile application. Sometimes you have to go beyond your comfort level and spend some time learning how to interact with other OS/400 objects. For example, reading files stored in the OS/400 Integrated File System. In this article, we'll take a look at how you can read OS/400 IFS files from within an RPG IV program. READ MORE >
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Become the Master of Your Subfile Domain
by Kevin Vandever
In the last two issues of Midrange Programmer, I discussed the load-all and self-extending subfiles respectively. Depending on the subfile requirement, one of those techniques might be the perfect the solution. However, each has its limitations, both for the programmer and for the user. In this third, and final, article on subfile types, I am going to talk about page-at-a-time subfiles, which, as you'll see, affords the programmer extreme power and provides users with more flexibility. Come take a peek. READ MORE >
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Reader Feedback and Insights
We value your feedback and insights on the OS/400 market. Feel free to send a letter to the editor. We will consider your letter a candidate for the reader feedback column for this newsletter, but we will contact you before we make your e-mail public. READ MORE >
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Editors: Shannon O'Donnell, Kevin Vandever
Managing Editor: Shannon Pastore
Contributing Editors: Howard Arner, Raymond Everhart,
Joe Hertvik, Ted Holt, David Morris
Publisher and Advertising Director: Jenny Thomas
Advertising Sales Representative: Kim Reed
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