PowerBuilder Tips, Tricks, and Techniques

Berndt Hamboeck

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Top Stories by Berndt Hamboeck

Struts is an open source initiative from the Jakarta Project written in Java. Sponsored by the Apache Software Foundation, the project's goal is to provide an open source framework that's useful for building Web applications with Java servlet and JavaServer Pages (JSP) technology. Struts encourages application architectures based on the Model-View-Controller (MVC) design paradigm. In the MVC design pattern, application flow is mediated by a central controller that delegates requests to an appropriate handler. The handlers are tied to a Model and act as an adapter between the request and the Model. The Model represents or encapsulates an application’s business logic or state. Control is usually forwarded back through the Controller to the appropriate View. The forwarding can be determined by consulting a set of mappings, usually loaded from a database or configurati... (more)

Ant: A Build Tool from the Jakarta Project

There is (still) a growing market for Java development tools. This is a good thing, but also a big problem, since I don't have a plug-in for every IDE for my secret love: Sybase EAServer. It's not fun to build a .jar, .war, or .ear in the IDE, then fire up the Jaguar Manager and do the boring "import by hand" thing. What is the solution? The solution is Jakarta Ant (http://jakarta.apache.org/ant/index.html). Ant is a build tool that uses Java technology to perform all build-related tasks. Since it's based on Java technology, it's a cross-platform build tool that works anywhere. A... (more)

DDDW Tips and Tricks

The DropDownDataWindow (DDDW) edit style is one of PowerBuilder's outstanding features. Yes, I know there are a lot of new and exciting capabilities in the upcoming release of PowerBuilder, but in this article I'll try to solve some of the current problems with the existing features that are popping up in nearly every project I've seen. Here I'll focus on DropDownDataWindows, including: How to get started with DDDWs Filtering DDDWs without losing the display value in other rows Catching the collapsing of a DDDW Trapping the cursor keys in a DDDW Autocomplete DDDW values Getting S... (more)

Tips, Tricks & Recipes for Sybase ASE

Tips, Tricks & Recipes for Sybase ASE Author: Rob Verschoor Publisher: Sypron Publications, The Netherlands In contrast with Rob Verschoor's previous book, The Complete Sybase ASE Quick Reference Guide, his new book, Tips, Tricks & Recipes for Sybase ASE, is a full-size book filled with a lot information that ASE administrators and ASE developers will find useful. It provides dos and don'ts, and tips on how to keep your data intact, performant, and valid, and your ASE users happy. The author, Rob Verschoor, is a certified DBA for ASE 12.5/12.0, and a freelance consultant with his o... (more)

ASE, Replication Server and IQ

A long time ago, after I had finished school and worked as a C++ developer, I started programming with PowerBuilder. I was not one of the best database developers; in fact, I was more than happy to create DataWindows without a Cartesian product. But over the years I learned a lot and lost my fear of the complexity of database servers. To show that there's no reason to be afraid of installing or using a database product, I'll demonstrate how to use the following Sybase products on a single Windows machine: Sybase ASE 12.5 Sybase Replication Server 12.5 Sybase IQ 12.5 A few years a... (more)