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What is the use of “MustInherit” keyword in VB.NET
What is the use of “MustInherit” keyword in VB.NET ? If you want to create a abstract class in VB.NET it’s done by using “MustInherit” keyword.You can not create an object of a class which is marked as “MustInherit”. When you define “MustInherit” keyword for class you can only use the class by i... 2007-10-23, 5981👍, 0💬

Do You Know the Book "JUnit Recipes: Practical Methods for Programmer Testing"
Do You Know the Book "JUnit Recipes: Practical Methods for Programmer Testing"? You should know this book. It received some good reviews. Title: JUnit Recipes: Practical Methods for Programmer Testing Publisher: Manning Publications (July 15, 2004) Author: J. B. Rainsberger, Scott Stirling Abstract:... 2008-01-03, 5980👍, 0💬

What is ILDASM
If you want to view a Assembly how do you go about it ? When it comes to understanding of internals nothing can beat ILDASM. ILDASM basically converts the whole exe or dll in to IL code. To run ILDASM you have to go to "C:\Program Files\Microsoft Visual Studio .NET 2003\SDK\v1.1\Bin". Note that i ha... 2007-10-22, 5980👍, 0💬

How To Calculate the Difference between Two Dates
How To Calculate the Difference between Two Dates? - MySQL FAQs - Introduction to SQL Date and Time Handling If you have two dates, and you want to know how many days between them, you can use the DATEDIFF(date1, date2) function as shown below: SELECT DATEDIFF(DATE('1997-02-28'), DATE('1997-03-01'))... 2007-05-11, 5980👍, 0💬

How To Get Some Basic Information Back from MySQL Servers
How To Get Some Basic Information Back from MySQL Servers? - MySQL FAQs - PHP Connections and Query Execution Once you got a MySQL server connection object successfully, you can use mysql_get_server() and mysql_get_host_info() to get some basic information from your MySQL server. The tutorial exerci... 2007-05-10, 5979👍, 0💬

What is GAC
What are situations when you register .NET assembly in GAC ? GAC (Global Assembly Cache) is used where shared .NET assembly reside. GAC is used in the following situations :- If the application has to be shared among several application. If the assembly has some special security requirements like on... 2007-10-22, 5978👍, 0💬

How To Generate a Feed Entry summary Element
How To Generate a Feed Entry summary Element? - RSS FAQs - Atom Feed File Structure and Elements The &lt;summary&gt; element is not a required sub-element of the &lt;entry&gt; element. But it is strongly recommended that you provide a summary element for each of your feed entries. Yo... 2007-05-12, 5978👍, 0💬

How to implement cloning in .NET ? What is shallow copy and deep copy
How do you implement prototype pattern in .NET? Cloning is achieved by using ICloneable of the System namespace. It has a “Clone” method which actually returns the reference of the same copy. Clone method allows a Shallow copy and not a deep copy. In Shallow copy if you make changes to the cloned ob... 2007-10-24, 5977👍, 0💬

What Is Index
What Is Index? - MySQL FAQs - Database Basics and Terminologies An index is a single column or multiple columns defined to have values pre-sorted to speed up data retrieval speed. 2007-05-10, 5975👍, 0💬

What Is the Order of Defining Local Variables and Sub Procedures/Functions
What Is the Order of Defining Local Variables and Sub Procedures/Functions? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions In the declaration part, you must define all local variables before defining any sub procedures or sub functions. See the following sample script: SQL> CRE... 2007-04-25, 5975👍, 0💬

How To Supply Default Values for Text Fields
How To Supply Default Values for Text Fields? - PHP Script Tips - Processing Web Forms If you want to provide a default value to a text field in your form, you need to pay attention to following notes: The default value should be provided in the 'VALUE=default_value' attribute in the &ltINPUT TY... 2007-04-22, 5975👍, 0💬

Relation between HTML and URL
What Is the Relation between HTML and URL? URL (Uniform Resource Locator) is a compact string representation of the location for a Web document or other resource that is available on the Internet. The URL of a HTML document is usually the document file name prefixed with the domain name of your Web ... 2007-03-03, 5975👍, 0💬

How Floating Elements Are Formatted
How Floating Elements Are Formatted? - CSS Tutorials - Understanding Multiple Element Formatting Rules A floating element is a block element or in-line element being specified with the "float" style property. If "float: left" is specified, a floating element will be formatted at the left margin of t... 2007-05-11, 5974👍, 0💬

What RSS 2.0 Files Look Like
What RSS 2.0 Files Look Like? - RSS FAQs - Introduction to RSS (Really Simple Syndication) Basics A RSS 2.0 file looks like the sample RSS 2.0 document below: &lt;?xml version="1.0"?&gt; &lt;rss version="2.0"&gt; &lt;channel&gt; &lt;title&gt;Developer FAQs, Tips and T... 2007-05-12, 5973👍, 0💬

How To Define an Anonymous Block
How To Define an Anonymous Block? - Oracle DBA FAQ - Introduction to PL/SQL An anonymous block must have an execution part, which is a group of other PL/SQL statements enclosed in the BEGIN ... END statement. Here is a script on how to define a simple anonymous block with SQL*Plus: SQL> set serverou... 2007-04-25, 5972👍, 0💬

How To Convert Characters to Numbers
How To Convert Characters to Numbers? - Oracle DBA FAQ - Understanding SQL Basics You can convert characters to numbers by using the TO_NUMBER() function as shown in the following examples: SELECT TO_NUMBER('4123.4570') FROM DUAL 4123.457 SELECT TO_NUMBER(' $4,123.46','$9,999,999.99') FROM DUAL 4123... 2007-04-23, 5972👍, 0💬

What’s an Object
What’s an Object ? It is a basic unit of a system. An object is an entity that has attributes, behavior, and identity. Objects are members of a class. Attributes and behavior of an object are defined by the class definition. 2007-10-23, 5971👍, 0💬

How To Reduce the Display Size of an Image
How To Reduce the Display Size of an Image? - XHTML 1.0 Tutorials - Understanding Inline Images and Image Maps If an image embedded inline is too big when displayed in a browser, you can use "width" and "height" attributes to reduce the image's display size. The display width and height should be pr... 2007-05-12, 5971👍, 0💬

Why Not Just Use a Debugger for Unit Testing?
Why Not Just Use a Debugger for Unit Testing? This is a common question in a job interview. You should answer it with these points: A debugger is designed for manual debugging and manual unit testing, not for automated unit testing. JUnit is designed for automated unit testing. Automated unit testin... 2008-02-06, 5970👍, 0💬

What Are the Types PL/SQL Code Blocks
What Are the Types PL/SQL Code Blocks? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are 3 types of PL/SQL code blocks: Anonymous Block - A block of codes with no name. It may contain a declaration part, an execution part, and exception handlers. Stored Program Unit - A block of code... 2007-05-01, 5970👍, 0💬

Can Group Functions Be Mixed with Non-group Selection Fields
Can Group Functions Be Mixed with Non-group Selection Fields? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If a group function is used in the SELECT clause, all other selection fields must be group level fields. Non-group fields can not be mixed with group fields in the SELECT clause. Th... 2007-05-11, 5968👍, 0💬

How To Validate HTML Documents Online
How To Validate HTML Documents Online? If you have just finished a new HTML document, and you want to make sure that confirms with the HTML specification, you can use the HTML online validator at http://validator.w3.org/ . There are 3 ways you can use this validator: By URL - Specify the URL where y... 2007-03-03, 5968👍, 0💬

What is RAID and how does it work
What is RAID and how does it work ? Redundant Array of Independent Disks (RAID) is a term used to describe the technique of improving data availability through the use of arrays of disks and various data-striping methodologies. Disk arrays are groups of disk drives that work together to achieve high... 2007-10-25, 5967👍, 0💬

What is Jakarta Struts Framework
What is Jakarta Struts Framework? Jakarta Struts is open source implementation of MVC (Model-View-Controller) pattern for the development of web based applications. Jakarta Struts is robust architecture and can be used for the development of application of any size. Struts framework makes it much ea... 2007-12-10, 5965👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML