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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.
here are times when database data manipulation requires extracting DDL (Data Definition Language) commands for various objects, such as database tables, indexes, constraints, triggers, etc. Recently I was charged with
s a developer, one of the most important tools at your disposal is your IDE. As a Java developer, there are several IDEs available?both commercial and open source?that are each
n the first article in this series, you saw how the Universal Description, Discovery, and Integration (UDDI) specification and protocol work together to define messages, application programming interfaces (APIs), and
If a compiler supports both and , the headers are subtly different.In particular, if you include , you get the elements of the iostream library enclosedwithin the namespace std. If
The select statement below takes the name “george” and finds how many occurrences of “ge” appear within it. select (length(‘george’) – length (replace(‘george’,’ge’,”))) / length(‘ge’) countfrom dual/ COUNT———- 2 Using
This code demonstrates how to look up a DataSource object in your Web server using JNDI Lookup. import javax.sql.DataSource;import java.util.Hashtable;import javax.naming.InitialContext;public void findDatasource() { // Initializing DataSource object DataSource dataSource
When you’re dealing with huge Ant files, it can be difficult to follow targets and their dependencies.Luckily, there’s a tool called Vizant that can generate a graph of your Ant
Suppose you have objects of type MyClass. Further assume that you have a collection (named myCollection) containing objects of type MyClass. To sort this collection, follow these steps: MyClass must
For any script that takes more than just a few seconds to run, it’s always a good idea to track the runtime itself. This is especially useful in the development
hat’s Power Python, you ask? It’s the effective use of Python language features to get a lot of work done in fewer lines of code. The lambda, reduce, filter, map,
any SQL Server developers eagerly anticipate the long-awaited release of SQL Server 2005, formerly code-named “Yukon.” Major goals for Business Intelligence (BI) in the 2005 release are better integration of
ast month, Computer Research Associates released their annual Taulbee Survey (of North America’s computer science programs. According to their numbers, enrollment declined nearly 20 percent between 2002 and 2003. Predictably,
This tip shows how binding Windows Forms controls to each other can reduce the code and logic needed to synchronize color changes between controls in a Windows Form. This technique
Today, most browsers are designed to handle the known mime types in a very user-friendly manner. For example, if a server program writes an image/jpeg as a mime type, the
This small snippet shows how to use a XPath on a DataSet. Here are the used classes: DataRowDataSetXmlDataDocumentXmlNodeListXmlNode Here’s the XML file: One Three Four Two Finally, here’s the code:
icrosoft Windows allows you to define various password policy rules. Specifically, it allows you to enable the “Password must meet complexity requirements” setting using the Policy Editor. This validates user
gile development is the new paradigm! (Are you rolling your eyes yet?) Yes, “paradigm” is an overused word but hype aside, agile development does offer some interesting best practices that
n our previous article “Put a 24-hour Lockdown on Your .NET UIs,” we discussed various ways to augment user interfaces to interpose underlying business logic and data engine security constraints.
he C++ preprocessor may seem like a prehistoric relic that has no place in state-of-the-art C++ projects, but this isn’t really so. Although every beginner nowadays knows how to use
I got a request from a developer the other day to produce a SQL statement with the resultset flopped. In other words, he wanted the rows to appear as columns
Often, in code, you find yourself constraining values doing something like: if(val < MIN) val = MIN;else if(val > MAX) val = MAX; This simple template function will do that
To find out if the correct version of Java .exe is installed in a system, type the following at the command line: java -fullversion
ow many times have you left your computer without locking it down? Sure, some people have a screensaver that locks the computer automatically after some elapsed period; most people set
ne problem with creating GUIs with Microsoft Visual Studio.NET is that they all tend to look the same. It takes extra work and innovation to make your user interface stand
ynamic proxies are a nifty, often overlooked feature of the Java language. Introduced in J2SE 1.3, they allow you to intercept method calls so you can interpose additional behavior between
ost report design tools attempt to please both developers and non-technical end users by combining high levels of flexibility and power and ease-of-use. This accommodation naturally requires various sacrifices on
hat happens when a potential customer goes through the feature list for your application and finds just one or two missing items? Do you have a mechanism for them to
IDP provides a lot of efficiency and flexibility when building user interfaces. The efficiency part can be seen in what MIDP calls the high-level user interface controls, which is what
ince Sun Microsystems released the first version of Java, the industry has been displeased with the way Java’s front-end development toolkit works. Though Swing appeased some developers with its look-and-feel,
ava is everywhere. So declared Sun Microsystems and many other industry heavyweights at this week’s JavaOne Developer Conference. From mobile devices, to dashboard computers in cars, and even to interplanetary
