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CLASSPATH Environment Variable
If a class is located in a package, what do you need to change in the OS environment to be able to use it? You need to add the directory or the jar file that contains the package to the CLASSPATH environment variable. Let's say a class Employee belongs to a package com.xyz.hr; and is located in the ... 2007-03-03, 5670👍, 0💬

How To Revoke User Privileges
How To Revoke User Privileges? - MySQL FAQs - Managing User Accounts and Access Privileges If your want remove some granted user privileges, you can use the "REVOKE privilegeName ..." command. You can only revoke privileges in the same way as they were granted. For example, you can not revoke a priv... 2007-05-08, 5668👍, 0💬

How To Write a Query with an Inner Join
How To Write a Query with an Inner Join? - MySQL FAQs - SQL SELECT Statements with JOIN and Subqueries If you want to query from two tables with an inner join, you can use the INNER JOIN ... ON clause in the FROM clause. The tutorial exercise below creates another testing table and returns output wi... 2007-05-11, 5667👍, 0💬

What Is Open Database Communication (ODBC)
What Is Open Database Communication (ODBC)? - Oracle DBA FAQ - ODBC Drivers, DSN Configuration and ASP Connection ODBC, Open Database Communication, a standard API (application program interface) developed by Microsoft for Windows applications to communicate with database management systems. Oracle ... 2007-04-17, 5667👍, 0💬

Is Struts efficient
Is Struts efficient? Yes. The Struts is not only thread-safe but thread-dependent (instantiates each Action once and allows other requests to be threaded through the original object. ActionForm beans minimize subclass code and shorten subclass hierarchies. The Struts tag libraries provide general-pu... 2007-12-07, 5666👍, 0💬

What is SQl injection
What is SQl injection ? It is a Form of attack on a database-driven Web site in which the attacker executes unauthorized SQL commands by taking advantage of insecure code on a system connected to the Internet, bypassing the firewall. SQL injection attacks are used to steal information from a databas... 2007-10-25, 5665👍, 0💬

What Are White Spaces in HTML Documents
What Are White Spaces in HTML Documents? - CSS Tutorials - Understanding Multiple Element Formatting Rules White spaces are combinations of continuous white space characters: " " - The space character. "\t " - The tab character. "\n " - The new line character. "\r " - The carriage return character. 2007-05-11, 5664👍, 0💬

What is CDATA section in XML
What is CDATA section in XML? All data is normally parsed in XML but if you want to exclude some elements you will need to put those elements in CDATA. 2007-10-31, 5663👍, 0💬

What is reflection?
.NET INTERVIEW QUESTIONS - What is reflection? All .NET assemblies have metadata information stored about the types defined in modules. This metadata information can be accessed by mechanism called as “Reflection”.System. Reflection can be used to browse through the metadata information.Using reflec... 2010-03-30, 5661👍, 0💬

What Is a SELECT Tag/Element
What Is a SELECT Tag/Element? - XHTML 1.0 Tutorials - Understanding Forms and Input Fields A "select" element is an inline element that you can use to define a dropdown input field in a form. Here are basic rules about a "select" element: "select" elements are inline elements. "select" elements can ... 2007-05-12, 5659👍, 0💬

What Is Union
What Is Union? - MySQL FAQs - Database Basics and Terminologies Join is data retrieval operation that combines multiple query outputs of the same structure into a single output. 2007-05-10, 5659👍, 0💬

How To Login to the Server without an Instance
How To Login to the Server without an Instance? - Oracle DBA FAQ - Introduction to Oracle Database 10g Express Edition If your default instance is in trouble, and you can not use the normal login process to reach the server, you can use a special login to log into the server without any instance. He... 2007-04-24, 5659👍, 0💬

What Happens If You Do Not Have Privileges to Create Database
What Happens If You Do Not Have Privileges to Create Database? - MySQL FAQs - PHP Connections and Query Execution If your MySQL server is provided by your Internet service company, your user account will most likely have no privilege to create new databases on the server. In that case, your CREATE D... 2007-05-10, 5656👍, 0💬

How Can Other Webmaster Steal Your Cookies
How Can Other Webmaster Steal Your Cookies? - PHP Script Tips - Understanding and Managing Cookies All browsers are following the security rule that your cookies are sent back only to your Web servers. They will not be sent to other Webmaster's Web server directly. However, other Webmaster may desig... 2007-04-23, 5656👍, 0💬

Can you explain what is DCOM
Can you explain what is DCOM ? DCOM differs from COM in that it allows for creating objects distributed across a network, a protocol for invoking that object’s methods, and secures access to the object. DCOM provides a wrapper around COM, hence it is a backwards compatible extension. DCOM uses Remot... 2007-10-22, 5655👍, 0💬

How many types of Transactions are there in COM + .NET ?
.NET INTERVIEW QUESTIONS - How many types of Transactions are there in COM + .NET ? There are 5 transactions types that can be used with COM+. Whenever an object is registered with COM+ it has to abide either to these 5 transaction types. Disabled: - There is no transaction. COM+ does not provide tr... 2010-01-26, 5653👍, 0💬

What Are the File Upload Settings in Configuration File
What Are the File Upload Settings in Configuration File? - PHP Script Tips - Uploading Files to Web Servers There are several settings in the PHP configuration file related to file uploading: file_uploads = On/Off - Whether or not to allow HTTP file uploads. upload_tmp_dir = directory - The temporar... 2007-04-19, 5653👍, 0💬

What is the difference between an alert box and a confirmation box?
What is the difference between an alert box and a confirmation box? An Alert box displays only one button which is the OK button, whereas a Confirm box displays two buttons namely OK and Cancel. 2008-08-26, 5652👍, 0💬

What Is an External Table
What Is an External Table? - Oracle DBA FAQ - Loading and Exporting Data An external table is a table defined in the database with data stored outside the database. Data of an external table is stored in files on the operating systems. Accessing data of external tables are done through data access d... 2007-04-30, 5651👍, 0💬

What Is Join
What Is Join? - MySQL FAQs - Database Basics and Terminologies Join is data retrieval operation that combines rows from multiple tables under certain matching conditions to form a single row. 2007-05-10, 5650👍, 0💬

Java Bean Class with 100 Fields
How to write a bean class, when you have 100 fields and each have three sub fields. 2007-04-26, 5650👍, 0💬

What is element and attributes in XML
What is element and attributes in XML? In the below example invoice is the element and the invnumber the attribute. &lt;invoice invnumber=1002>&lt;/invoic e> 2007-10-31, 5648👍, 0💬

How To Connect to a MySQL Sever with Default Port Number
How To Connect to a MySQL Sever with Default Port Number? - MySQL FAQs - PHP Connections and Query Execution If you want to connect a MySQL server with default port number, you can use the "mysql_connect($server)" function, where $server is the host name or IP address where the MySQL server is runni... 2007-05-10, 5648👍, 0💬

What is the difference between a web-garden and a web-farm?
What is the difference between a web-garden and a web-farm? Web-garden - An IIS 6.0 feature where you can configure an application pool as a web-garden and also specify the number of worker processes for that pool. It can help improve performance in some cases. Web-farm - A general term referring to... 2008-08-12, 5645👍, 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