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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.
asic error handling in SQL Server’s programming language, Transact-SQL, is straightforward. But when you nest calls to stored procedures, and the procedures have SQL transactions, error handling becomes much more
nderstanding the Java classpath and Java’s classloading mechanism are essential for any proficient Java developer. In a previous DevX article (Put an End to Jar File and Class Name Conflicts),
he .NET Framework doesn’t change the structure of the file system, nor does it build a new layer on top of it. More simply, but also more effectively for developers,
‘ve been in this business long enough to know that wherever you find a software developer you’ll find at least a one-to-one relationship to a deadline. More often, you’ll find
Query will likely become the dominant language for querying data from most data sources. Although designed for querying XML data, you can use XQuery to tie together data from multiple
nspiration for my editorials comes from many diverse sources. Sometimes I get inspired from a song on the radio, a conversation with a friend, or a line from a movie.
The following code can be used to create a popup window which flies in the screen.
Everybody knows that it takes a long time to insert a large number of records into a table. To improve the speed of insertion, you can use the PL/SWL loop
This is helpful, for instance, if you’re error logging to the file and body of an e-mail. Create a new subclass of OutputStream called TeeOutputStream like this: package be.marble.io;import java.io.*;public
You probably know that integers are represented in binary–in base 2. This is pretty straightforward for positive numbers, but it means you must choose an encoding for representing negatives. The
‘ve had a long and happy history using the MetroWerks CodeWarrior IDEs for both Mac and Windows development; they’ve helped me throughout college for those programming projects occasionally thrown at
avaOne alumni know that if you want to get a true geek’s-eye glimpse of the technological future, try to get close to James Gosling. This year Gosling, who is a
s programming languages have evolved over the years, the challenges in optimizing and fine-tuning applications have changed. I began programming 20 years ago and quickly adopted assembler language for its
VB6 does not natively support free threading, but with this ActiveX library you can finally create multiple threads and make them communicate, write delegate functions (similarly to VB.NET) and use
‘ A reusable routine that displays error information’ Note: requires Imports System.ReflectionSub DisplayExceptionInfo(ByVal e As Exception) ‘ Display the error message. Console.WriteLine(e.Message) Dim st As New StackTrace(e, True) Dim i
‘ copy or append text to the clipboardSub ClipboardSetText(ByVal text As String) ClipboardSetText(text, False)End SubSub ClipboardSetText(ByVal text As String, ByVal append As Boolean) If append Then text = ClipboardGetText() &
‘ Check whether a specified file is a .NET assemblyFunction IsAssembly(ByVal filename As String) As Boolean Try Dim asm As [Assembly] = [Assembly].LoadFrom(filename) ‘ if no exception is thrown, this
‘ Get the text in the clipboardFunction ClipboardGetText() As String Return CStr(Clipboard.GetDataObject().GetData(DataFormats.Text))End Function
Shared Function _ LoadLibrary(ByVal path As String) As IntegerEnd Function Shared Function _ GetProcAddress(ByVal hModule As Integer, ByVal procName As String) As _ IntegerEnd Function Shared Sub FreeLibrary _ (ByVal
‘ If the first argument is Nothing or a null string return the 2nd argumentFunction IfNull(ByVal value As String, ByVal defaultValue As Object) As String If Not value Is Nothing
an Francisco, Calif.?Sun says it plans to more than triple its developer base in the next few years. The plan is to target developers whose skill levels and development needs
nlike most other programming languages, C++ by default doesn’t initialize automatic variables. Consequently, uninitialized auto variables and aggregates have an indeterminate value. Due to insufficient familiarity with the correct syntax
San Francisco?Java has a new look and?it would seem?a new focus. On the first day of the 2003 JavaOne developer conference Tuesday, Sun Microsystems unveiled an updated Java logo and
etting database data into and out of business objects has always been a problem; however, now that SQL Server 2000 supports XML, you can use interesting techniques that capitalize on
anta Clara, Calif.?Among the last words spoken at a vendor panel titled Linux and Security Standards here at Jupitermedia’s Enterprise Linux Forum Conference & Expo (June 4-6, 2003) may have
enerics is one of the hottest features of Sun Microsystems’s upcoming JDK 1.5 (Tiger) release. Programmers and researchers have been clamoring for a feature like this for years, and an
This component is intended to take valid Visual Basic source code an convert it to properly colorized HTML with procedure seperators. The input can either be a file of any
‘ Evaluate the number of business days between two dates’ Example: Debug.WriteLine(BusinessDateDiff(#4/9/2003#, #4/25/2003#)) ‘ => 12Function BusinessDateDiff(ByVal startDate As Date, ByVal endDate As Date, _ Optional ByVal saturdayIsHoliday As Boolean
‘ Evaluate the Easter date for a given year’ Example: MessageBox.Show(EasterDate(2003).ToLongDateString())Function EasterDate(ByVal year As Integer) As DateTime Dim g, c, h, i, j, l, month, day As Integer g =
‘ Add or subtract a number of business days from a date’ Example: Debug.WriteLine(BusinessDateAdd(#4/9/2003#, 5)) ‘ => 4/16/2003Function BusinessDateAdd(ByVal startDate As Date, ByVal days As Integer, _ Optional ByVal saturdayIsHoliday
