ntil recently, people argued that Perl did not have stable multithreaded capabilities. This article presents a Perl application for which using multithreading capabilities makes sense: a Web crawler with all
e’ve come a long way from the days when the tools to which we most often turned to support us in developing applications were off-the-shelf commercial products. Today, thousands of
f there were an election for the most underrated .NET framework technology, I’d vote for WMI. ADO.NET and Web services seem to get all the marketing attention, and technical publications
he dream of cross-platform applications has been a holy grail of development since the dawn of the computer age. Most recently, the Java platform with its “Write once, run anywhere”
Short Messaging Service (SMS) services are becoming near-ubiquitous. Who among us has not used their cellphone to check the latest cricket score or to get the latest news? One very
rom the earliest days of J2ME, network connectivity has been a central focus of the design. So much so that a generic architecture, referred to as the Generic Connection Framework
ver May 17-20, 2004, I had the pleasure of attending the 17th International Conference on Industrial and Engineering Applications of Artificial Intelligence and Expert Systems (IEA/AIE 2004) in Ottawa, Ontario,
he Java Native Interface (JNI) is used to call code written in another language?such as C or C++?from a Java program. As such, it is often used when a Java
he Digester framework is a high-level interface that parses an XML stream and populates the data into Java objects based on rules provided to the Digester component. Among the other
The following code performs powerful Date type validation in XSD. It validates date fields with timestamp (optional) in yyyyMMdd hh:MM:ss.ffffff format. If your XML file contains the element ValueDate, the
icrosoft’s free server tool, ADS (Automated Deployment Services), provides system administrators with a consistent way to deploy the Windows OS, but what about RDBMS deployment? Does setting up SQL Server
Whenever possible, use C++ arrays. Array indexing has an order of magnitude of O(1). This means that it is very fast. However, if the size of the array is not
Suppose you have a “view” into a set of records. One column of the data contains a country ID, (such as “US”): DataView myDataView = new DataView(myTable); myDataView.RowFilter = “country
Use this code to cache your repeated calls to the database: Dim mLookup As Scripting.DictionaryDim cn As ADODB.ConnectionEnum enumLookup ltCustomers ltVendors ltSalespeopleEnd EnumPrivate Sub Form_Load() Dim rstest As ADODB.Recordset Set
Suppose you start a thread and you want to wait for that thread to finish before you continue processing. One way is to keep checking if the thread has finished
t has been a little while since Java got a refresh, and with the Java Community Process churning out updates in the form of new JSRs by the hundred, it
here’s little doubt that the Internet and the Web have transformed services and content delivery more than any other recent technology innovation. In its initial form, the Web provided a
any organizations are developing applications that provide information to users and employees when they need it?regardless of their locations. These types of applications, called notification applications, offer these organizations many
ver the past few years, Flash has made a big transition from a straightforward animation tool to a full-fledged development environment that makes its specialty in rich front ends for
ven a casual observer of today’s IT scene has seen the buzzword storm that has developed around various forms of technology-enabled business management and monitoring: Business Performance Management (BPM), Business
icrosoft Active Accessibility is a technology that improves the way programs and the operating system can interact with accessibility aids. Active Accessibility has to be invisible to the user and
To remove the read-only checkbox from a common dialog control, add the following constant declaration to the module: Global Const OFN_HIDEREADONLY = &H4& Then, while calling the common dialog, write
If a virtual function in a base class has a default argument that is overridden in the derived class, at run time the value in the base class is always
This is a great tip for DBAs. If you ever end up removing a variable-length column (varchar) or text column from one of your tables, a certain amount of wasted
If a class data frame’s size goes above 64K (65536 bytes), the Java compiler rejects the compilation. The compiler’s limitation is due to its ability to handle the larger data
aching is one of the features in ASP.NET 1.x that most developers are familiar with. And it has helped to fuel a yearning for cache dependency in SQL Server. The
Most Web-based Perl applications use more than five .cgi Perl scripts. Instead of typing all the DBI information in the script, I created a function you can use that gets
he build process has always been one of the dark mysteries of Visual Studio. What exactly happened when you pressed F5 inside the IDE? Nobody really knew for sure. This
he latest version of the Tomcat 5 servlet container provides built-in support for monitoring server components using the Java Management Extensions (JMX) API. This article concentrates on the clustering and
Did you know you can start a job from the Query Analyzer? Here’s how you do it: exec msdb.dbo.sp_start_job @job_name = ‘My SQL job’ Related Posts Avoiding the HashMap Size