Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.
Oracle does not have a mechanism by which you directly change column names. But this workaround is quick and efficient. Consider TableA: COLUMN_1 NUMBERCOLUMN_2 VARCHAR2(500)COLUMN_3 DATE You want to change
To take advantage of the power of XMLSchema in a SAX or DOM application, you simply have to set two properties. In JAXP 1.3, use the javax.xml.validation package. The two
When you execute a new query and populate an existing dataset, the newly retrieved records are appended to the existing records in the dataset. If you wish to remove the
While multiple inheritance is an extremely useful feature?escpecially in large scale software, it can also lead to a problem known as the DDD, or “Dreadful Diamond on Derivation,” or simply
Here are three quick ways to determine a computer’s name: Type Hostname in the Command Prompt, then press the Enter key. Press the Windows and Pause keys to bring up
ow many times have you seen this scenario: SQL Server developers understand business rules, yet when they try to use triggers and constraints to implement them the database ends up
his installment of the Baker’s Dozen presents an introduction to remoting and remoting interfaces. Using .NET remoting you can call and execute code running outside your machine’s physical boundaries, such
oes anybody need an introduction on JUnit? No? OK, so I’ll assume that you know this Java unit testing framework created by Kent Beck and Erich Gamma and skip the
he previous article in this series discussed how to use the Visual Studio Tools for Office (VSTO) platform to build a custom alerting application that used Outlook as the alerting
treaming video is a very fashionable buzz phrase these days thanks to the pervasiveness of Internet video (which is, in turn, thanks, largely, to Flash). However, it’s also a widely
un Java System RFID Software is an RFID infrastructure framework that integrates data and RFID-enabled devices into enterprise application systems ranging from small projects to large deployments. Java System RFID
orting an existing Java Web application to a new framework is probably not at the top of most developers’ fun-stuff-to-do lists. In addition to the time of learning a new
uilding complex Web controls with rich-client interfaces often requires the integration of some client-side JavaScript code with the control’s server-side code. While in some cases this does not have to
ur daily lives revolve around a series of activities, decisions, and rules. For example, upon waking one of the first activities you do is probably to brush your teeth, followed
o far, there’s been plenty of ink expended on ASP.NET 2.0’s site navigation controls, but most of that coverage lacks details on how to use the new navigation features in
he keywords final and sealed in Java and C# respectively ensure that a certain class shall not be subclassed. C++ doesn’t have a similar keyword. Naive programmers are often tempted
ne dilemma developers face when building applications for mobile platforms is deciding which platform to focus on. In the past, Microsoft developers’ choices were limited to Windows Mobile-based platforms; but
If you wish to position a child form at a specific location?instead of its default location at the top left of the MDI parent form, set the child form’s StartPosition
Although it is perfectly okay to use a goto to exit a nested loop, many developers prefer not to use gotos. Another way to exit a complicated, nested block of
Did you know you can listen to any PDF instead of reading it? It’s possible with Adobe Reader 6.0+. Here’s the short cut: CTRL+SHIFT+B: This allows you to hear the
Have you ever had a problem printing lines in color from VB6 (SP4)? The following code works correctly on a PictureBox, but prints black on the Printer (HP LaserJet and
riting?and maintaining?portable code is as much an art as it is the holy grail of many software companies. If your firm’s success is based on a key algorithm for mobile
rogramming is not only remembering Java classes or the numerous utilities that appear almost every day. It is also the ideas in Donald E. Knuth’s “The Art of Computer Programming”
ne of the classic problems with database applications is refreshing stale data. Imagine a typical e-commerce site with products and categories. A vendor’s product list most likely does not change
he phrase AJAX is getting all the attention lately. By now, you should already be familiar with the term, but for those of you still in the dark, AJAX represents
early every .NET application needs to handle data that may reside in a wide range of data sources, from relational databases, to XML, to in-memory or disk-persisted objects. Although .NET
nterprise software products always require custom integration work at the customer site, and upgrades are nearly impossible when customers have to modify the core product’s configuration to introduce their customizations.
isual Studio Tools for Office (VSTO) is an add-on to Visual Studio 2005 that gives developers much more direct IDE support and easier access to the rich programming model provided
ou’d have to be developing web pages on another planet not to have heard the buzz about AJAX (asynchronous Java and XML). Judiciously employed, AJAX calls can enhance the usability
The Thread.stop() method is unsafe and thus deprecated. If the thread being stopped was modifying common data, that common data remains in an inconsistent state. A better way would be
