Keeping information away from curious eyes is a challenging task. For
example, you might need to encrypt data before sending it over the Internet.
Or you might be storing some information in a database that not even an
administrator is allowed to see. This article provides a brief overview of
encryption techniques and shows how to do encryption in PowerBuilder.
Encryption goes as far back as ancient Egypt. In 1900 B.C. the Egyptians used
a derivation of standard hieroglyphics to make a message more difficult to
read. The art of hiding messages improved over the centuries. The early
Greeks used a combination of wooden sticks and leather ribbon whereas the
early Romans used simple substitution (replacing one character by another).
In the 16th century, the polyalphabetic substitution was invented. That was
followed by the Enigma encryption machine, which t... (more)
The latest development technologies rely on intermediate languages and can be
decompiled. PowerBuilder is no exception. In this article, we will address
the risks posed by decompilers. We will also discuss what can be done to
protect against the possible negative results of decompilation - whether you
create in-house applications, commercial applications, or are using these
applications for your business.
A PowerBuilder Decompiler?
A decompiler is a program that reads executable code and decompiles it,
providing access to source code. It has nothing to do with viruses or other
On Wednesday December 15th, 2010 SPBUG presents a seminar with Yakov Werde:
Refactoring of PowerBuilder applications based Test Driven DevelopmentYakov
Werde, a 25 year IT industry veteran, has been designing and delivering
PowerBuilder training for over 14 years, more than ten of them as an employee
of Sybase Inc. Before that he worked as an application architect, project
manager and application coder in the trenches of application software
development. A professional technology educator, Yakov holds a Masters in
Education with a specialty in instructional design for online lear... (more)
Why should you use GIS (Geographic Information System) data in PowerBuilder?
You can plan a route for a service technician or a sales person. You can
track the positions of the trucks delivering goods and it might allow you to
direct a truck to an additional pick up close to its route. You can print
driving directions when heading to an unknown place.
The following article demonstrates how to use the Microsoft MapPoint control
from within PowerBuilder to perform such operations.
The MapPoint Control
The MapPoint object model contains a lot of objects, but we'll use only a
few. Fi... (more)
So you think, "Why bother using PBDOM?" Well, you can use PDOM to manipulate
elements in an XML document. That means you can move elements in a document
or from one document to another. You can add elements to a document or delete
them from a document. And, with a little coding, you can import nested XML
data into a DataWindow.
With the XML capabilities in the DataWindow introduced with Sybase's
PowerBuilder 9, it's possible to import and export data very fast and easily.
You might have glanced at the PBDOM definition in the PowerBuilder help and
figured it looked hard to handle... (more)