Did you know you can determine if a number is prime by calling an XQuery query? Here’s the code: <prime_numbers> { for $a in (1 to 50) return( if(not(some $counter
rior to SQL Server 2005, Microsoft’s SQL Distributed Management Objects (SQL-DMO) offered the most efficient way to manage SQL Server programmatically. SQL-DMO supported a COM-based interface that you could use
any developers have adopted AJAX as a way to develop rich web applications that are almost as interactive and responsive as desktop applications. AJAX works by dividing the web UI
The AWTEventListener class’ sole purpose is to view events. All you have to do is to implement the eventDispatched method. The following application demonstrates how: import java.awt.*;import java.awt.event.*;public class EventTest
While converting to Excel 2007, I had to update the column-number-to-string code in my program to handle columns of 703 and above (AAA). I found Yassine Moe’s code and simplified
Checking for Daylight Savings Time is one of the most common date checks developers perform. .NET provides an easy method to do this. In .NET 1.1, use the Timezone class’
f you have ever dreamed of being a game developer (honestly, who among us has not toyed with the idea at least a little?), this is your time in the
echnologies such as the xUnit framework, combined with Maven, BuildBot, or CruiseControl, enable unit testing under continuous integration, which gives developer productivity a huge boost. However, writing true unit tests
pple’s iPhone has taken the nation by storm. An alleged half million moved from the shelves into people’s pockets in the first weekend it went on sale. Safari, the iPhone’s
hope you’ve been following the growing interest in semantic technology and reading the articles on DevX’s Semantic Zone, and feel ready to try out semantic technologies in your own applications.
hen you want to build a simple form—something with a set of fields and perhaps a table of repeating fields—it’s easy to pick up InfoPath and bang out a form
ource code reviews and inspections have long been considered economical methods for rooting out functional and design flaws in code even before applications make their way to testing. As security
ASP.NET AJAX (formerly called Atlas) is a new free framework from Microsoft designed to let developers add Asynchronous JavaScript and XML (AJAX) features to ASP.NET applications easily, simplifying the process
To call an SAP function module from a Java application, you first need SAP JCo (Java Connector); you can download it from SAP’s site, though you need an account to
Use the following code to insert an XML Schema into an XQuery query. The following code assumes that the XML Schema is: file:///C://Data_Local//xml//docs//AirWings_xslt_xmlschema.xsd and the XML file is: file:///C://Data_Local//xml//docs//AirWings_xpath_xslt.xml Import
The form class’ ShowDialog method functions differently than its Show method. Here’s how: ShowDialog‘s returned value can be used to determine how the user closed the form (using the DialogResult
ow many software tasks DON’T involve querying data? Answer: very few. Developers work all the time with database data, XML data, .NET DataSets, collections, lists, and arrays?and each requires a
isual Studio provides convenient design-time wizards to define static database connection strings that you can store in your settings files. Storing connection strings in configuration files means you can update
Resource Description Framework (RDF) is not the world’s most beloved standard. That it is used most often in fairly obscure applications for handling such fundamental concepts as meaning, topicality, and
tandard C++ offers a rather limited number of functions for accurate time measurement: clock() gives you a granularity of up to a thousandth of a second at best, and difftime()
f you’ve got a Windows Mobile device with Bluetooth connectivity, why not write your own PowerPoint clicker application so that you can use it in your next company presentation and
n Second Life (SL) users can fly nearly anywhere in superhero style. They can also teleport from one place to another in seconds—without any assistance from any sort of device.
Excel spreadsheets can grow to a very large number of rows. After the spreadsheet grows beyond a single page, the column headings scroll off the page, making it very difficult
If one class is inheriting from another class, a quick, easy way to find the available overrides is through .NET’s IntelliSense. Simply type “override” in a class and .NET will
The introspection process allows the JSP engine to populate a JavaBean with the values provided by a client through an HTML form. //when the names of the bean properties match
In increasing number of web applications built today use portal technology. A portal is a web application that typically provides services such as personalization, single sign-on, and content aggregation from
his article walks you through a case study that illustrates how to marry SharePoint 2007 with Excel data to offer a Business Intelligence (BI) “lite” solution for avid spreadsheet users.
ver the years, we have all seen the proliferation of Web applications. In the early days, Web sites consisted of sets of static HTML pages, with nice graphics and lots
When you need to execute the same SQL statement (in general an UPDATE) multiple times with different parameter values you can use the PrepareStatement method like this: Connection conn=null;PreparedStatement pst=null;String[]
You can change the assembly version quickly by including the bindingRedirect element in the web.config file. For example, suppose you need to redirect a particular old version dll hit to