PowerBuilder Tips, Tricks, and Techniques

Berndt Hamboeck

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Latest Articles from Berndt Hamboeck
The Sybase Enterprise Portal is ideal for organizations that are looking for a solution that allows developers to integrate existing enterprise content and applications as well as incorporate the tools that will enable them to access, manage, share, and understand them better.
As architects of enterprise systems, we know that security should always be a concern when we transfer or store sensitive data. In the past, you might have cut corners because you assumed the corporate LAN provided some implicit level of protection. You might have rationalized that bec...
In Part 1 (PBDJ, Vol. 9, issue 11), we discussed a lot of different languages that could be compiled to Java bytecode. This month I'll provide a real example by using Jython in EAServer. Botanists know that if you cross-pollinate two different strains of plants, you create a hybrid, a ...
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 th...
Your company decides to implement a mobile application initiative and has chosen which database, handheld, and software packages to use. A new year has begun and new projects will be started, so now is the time to think about what we are doing, what our jobs are, and how we understand ...
One of the biggest problems in an enterprise is deploying the application. Usually you have to deliver a new release of your application to several hundred workstations. This may be a time-consuming and very cost-intensive task.
I'm sure many of you have experienced the same problems within your company as I've experienced at my work these past few months. We have a single database server serving every part of our information processing community within our company, from transaction to batch processing to anal...
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 l...
There's a variety of programming languages worth taking a look at, many of which can be used in your EAServer and client/server projects.
What's a Web site without a search engine? If you want your Web site or your company Web site to be cutting edge, this article shows you how.
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.
While writing one of my PowerBuilder 9 book chapters, I suddenly had an idea. Wouldn't it be great to use PowerBuilder as a WAP front end?
The Web Services Description Language (WSDL) makes it possible for automated code-generation tools, like PowerBuilder 9 with its Web services wizard, to simplify building clients for existing Web services.
Perhaps you don't want all the users of your site to have the same type of access. Maybe you want to restrict some of the content to certain users, or know who uses what on your machine, or give different users a different color scheme on the page. In a nutshell: you want to know what ...
I've heard it many times: training in general (not only Sybase classes) is so expensive. I agree, but believe me, it's worth every cent (I'll just be discussing the Sybase classes in this article).
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...
In this article I'll show you how to play MP3 files with your own 'sound machine' written in PowerBuilder. But before we start to implement it, you should first understand what MP3 is.
One cool feature in Pocket PowerBuilder is that you can include functionality that's not provided by the tool: accessing the Windows CE Application Programming Interface (WinCE API).
Web services is an emerging technology driven by the will to securely expose business logic beyond the firewall. Through Web services you can encapsulate existing business processes, publish them as services, search for and subscribe to other services, and exchange information througho...
It won't be long until a new product developed by Sybase hits the stores. Yes, I'm talking about Pocket PowerBuilder. For any professional (PowerBuilder) software developer, this should be reason enough to look behind the scenes of mobile and wireless development.
In Part 1 (PBDJ, Vol. 9, issue 6) I discussed directory services and how they provide authentication, access control, and finder services for our application. In Part 2, I explain how the JNDI API lets us easily use LDAP.
The Lightweight Directory Access Protocol (LDAP) is for accessing online directory services. It runs directly over TCP and can be used to access a standalone LDAP directory service. Developed in the early 1990s, it defines how a client should access data on the server. It does not spec...
Have you ever looked at a rainbow and wondered how all the colors got there? Or wondered why grass looks green and your jeans blue? Well, if you sit in front of your computer as often as I do, you might not.
EAServer includes a powerful API called the Interface Repository. In this article I'll create a small service component to clean this repository of unwanted files that might be created when you deploy PowerBuilder components. I'll show how to get all the packages associated with your s...
Okay, I know you're already familiar with the PowerBuilder IDE. Yes, you're one of those people who knows where to find the system tree and how to turn it off. And you already know what the clip window is for (if you don't, look at it, it's a pretty cool feature - we used it in our 7-y...
WAP stands for Wireless Application Protocol and is based on Wireless Markup Language (WML), which is closely related to Hypertext Markup Language (HTML). WAP enables you to quickly and easily deliver information and services to mobile users. It's independent from any other mobile or n...
As architects of enterprise systems, we know that security should always be a concern when we transfer or store sensitive data. In the past, you might have cut corners because you assumed the corporate LAN provided some implicit level of protection. You might have rationalized that bec...
The Sybase Enterprise Portal is ideal for organizations that are looking for a solution that allows developers to integrate existing enterprise content and applications as well as incorporate the tools that will enable them to access, manage, share, and understand them better.
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. Stru...
In Part 1 (PBDJ, Vol. 9, issue 11), we discussed a lot of different languages that could be compiled to Java bytecode. This month I'll provide a real example by using Jython in EAServer. Botanists know that if you cross-pollinate two different strains of plants, you create a hybrid, a ...
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 th...
'Web services are a new breed of Web application. They're self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web services perform functions, which can be anything from simple requests to complicated business processes.
One of the biggest problems in an enterprise is deploying the application. Usually you have to deliver a new release of your application to several hundred workstations. This may be a time-consuming and very cost-intensive task.
Many of us started playing around with Java several years ago, fighting our way through CLASSPATH variables, packages, and javac.exe, and ended up with our first 'Hello World' or file read/write/close application. What did we use to write our first small application and classes?
There's a variety of programming languages worth taking a look at, many of which can be used in your EAServer and client/server projects.
What's a Web site without a search engine? If you want your Web site or your company Web site to be cutting edge, this article shows you how.
The Web Services Description Language (WSDL) makes it possible for automated code-generation tools, like PowerBuilder 9 with its Web services wizard, to simplify building clients for existing Web services.
Perhaps you don't want all the users of your site to have the same type of access. Maybe you want to restrict some of the content to certain users, or know who uses what on your machine, or give different users a different color scheme on the page. In a nutshell: you want to know what ...
Web services is an emerging technology driven by the will to securely expose business logic beyond the firewall. Through Web services you can encapsulate existing business processes, publish them as services, search for and subscribe to other services, and exchange information througho...
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...