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Hypertext Link
What is a Hypertext link? A hypertext link is a special tag that links one page to another page or resource. If you click the link, the browser jumps to the link's destination.
2007-03-03, 6410👍, 0💬

Give the Details of XML files used in Validator Framework
Give the Details of XML files used in Validator Framework? The Validator Framework uses two XML configuration files validator-rules.xml and validation.xml. The validator-rules.xml defines the standard validation routines, these are reusable and used in validation.xml to define the form specific vali...
2007-12-28, 6402👍, 0💬

If we write a goto or a return statement in try and catch block will the finally block execute
If we write a goto or a return statement in try and catch block will the finally block execute ? The code in then finally always run even if there are statements like goto or a return statements.
2007-10-23, 6396👍, 0💬

Can one issue DDL statements from Forms?
Can one issue DDL statements from Forms? DDL (Data Definition Language) commands like CREATE, DROP and ALTER are not directly supported from Forms because your Forms are not suppose to manipulate the database structure. A statement like CREATE TABLE X (A DATE); will result in error: Encountered the ...
2011-04-05, 6393👍, 0💬

How To Update Existing Rows in a Table
How To Update Existing Rows in a Table? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts Updating existing rows in a table requires to run the UPDATE statement with a WHERE clause to identify the row. The following sample script updates one row with two new values: &lt;?php in...
2007-05-11, 6391👍, 0💬

define() - Defining Constants
How do you define a constant in PHP? You can define a constant by using the define() function. Once a constant is defined, it can never be changed or undefined. For example: &lt;?php define("CONSTANT", "Hello world."); echo CONSTANT; // outputs "Hello world." echo Constant; // outputs "Constant"...
2007-02-27, 6388👍, 0💬

How To Enter Element Content
How To Enter Element Content? - XHTML Tutorials - Introduction To Tag and Attribute Syntax Most of XHML elements allow you to specify contents. But there are some XHTML elements that do not allow any contents. If an XHTML element does allow element content, you need to enter the content between the ...
2007-05-12, 6387👍, 0💬

How To Initialize Variables with Default Values
How To Initialize Variables with Default Values? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are two ways to assign default values to variables at the time of declaration: Using key word DEFAULT - Appending "DEFAULT value" to the end of declaration statements. Using assignment oper...
2007-04-30, 6387👍, 0💬

How To Write Element Attributes Properly
How To Write Element Attributes Properly? - XHTML Tutorials - Introduction To Tag and Attribute Syntax If an attribute is allowed for an XHTML element, you must write the attribute inside the opening tag of this element. Here are some rules on writing element attributes: An attribute must have a nam...
2007-05-12, 6382👍, 0💬

What Happens When FireFox Knows a Web Page Has Atom Feeds
What Happens When FireFox Knows a Web Page Has Atom Feeds? - RSS FAQs - Atom Feed Introduction and File Generation When you use a FireFox browser visiting a Web page that has an Atom feed define, FireFox will display a "live bookmark" icon in the status bar. You can click the "live bookmark" to add ...
2007-05-12, 6381👍, 0💬

What is PHP
What is PHP? The PHP Hypertext Preprocessor is a programming language that allows web developers to create dynamic content that interacts with databases. PHP is basically used for developing web based software applications.
2007-02-27, 6381👍, 0💬

sleep() and yield() Methods
What is the difference between yielding and sleeping? When a thread invokes its yield() method, it returns to the ready state. When a thread invokes its sleep() method, it returns to the waiting state.
2007-03-03, 6380👍, 0💬

What Is a Session
What Is a Session? A session is a logical object created by the PHP engine to allow you to preserve data across subsequent HTTP requests. There is only one session object available to your PHP scripts at any time. Data saved to the session by a script can be retrieved by the same script or another s...
2007-02-27, 6378👍, 0💬

How To Quote Date and Time Values in SQL Statements
How To Quote Date and Time Values in SQL Statements? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts If you want to provide date and time values in a SQL statement, you should write them in the format of "yyyy-mm-dd hh:mm:ss", and quoted with single quotes ('). The tutorial exerc...
2007-05-11, 6377👍, 0💬

What is the design role played by Struts
What is the design role played by Struts? The role played by Structs is controller in Model/View/Controller(MVC) style. The View is played by JSP and Model is played by JDBC or generic data source classes. The Struts controller is a set of programmable components that allow developers to define exac...
2007-11-30, 6374👍, 0💬

What Is the MIME Type Definition for Atom Files
What Is the MIME Type Definition for Atom Files? - RSS FAQs - Atom Feed Introduction and File Generation Atom files have its own MIME type definition as: MIME type: application/atom+xml File extension: .atom, .xml Type of format: Syndication Extended from: XML
2007-05-12, 6374👍, 0💬

What Is Table
What Is Table? - MySQL FAQs - Database Basics and Terminologies A table is a data storage structure with rows and columns.
2007-05-10, 6373👍, 0💬

What Is InnoDB
What Is InnoDB? - MySQL FAQs - Database Basics and Terminologies InnoDB is a transaction safe storage engine developed by Innobase Oy (an Oracle company now).
2007-05-10, 6371👍, 0💬

What Is Primary Key
What Is Primary Key? - MySQL FAQs - Database Basics and Terminologies A primary key is a single column or multiple columns defined to have unique values that can be used as row identifications.
2007-05-10, 6370👍, 0💬

What is the difference between Shadowing and Overriding
What is the difference between Shadowing and Overriding ? Following are the differences between shadowing and overriding :- ? Overriding redefines only the implementation while shadowing redefines the whole element. ? In overriding derived classes can refer the parent class element by using “ME” key...
2007-10-23, 6368👍, 0💬

How To Invoke a User Function
How To Invoke a User Function? - PHP Script Tips - Creating Your Own Functions You can invoke a function by entering the function name followed by a pair of parentheses. If needed, function arguments can be specified as a list of expressions enclosed in parentheses. Here is a PHP script example on h...
2007-04-24, 6367👍, 0💬

What is the difference between a NULL pointer and a void pointer
What is the difference between a NULL pointer and a void pointer? A NULL pointer is a pointer of any type whose value is zero. A void pointer is a pointer to an object of an unknown type, and is guaranteed to have enough bits to hold a pointer to any object. A void pointer is not guaranteed to have ...
2007-11-13, 6366👍, 0💬

Garbage Collection
Does garbage collection guarantee that a program will not run out of memory? No, it doesn't. It is possible for programs to use up memory resources faster than they are garbage collected. It is also possible for programs to create objects that are not subject to garbage collection.
2007-03-03, 6365👍, 0💬

Relation between HTML and SGML
What Is the Relation between HTML and SGML? SGML (Standard Generalized Markup Language) is a metalanguage in which one can define markup languages, like HTML, for documents. SGML is a descendant of IBM's Generalized Markup Language (GML), developed in the 1960s by Charles Goldfarb, Edward Mosher and...
2007-03-03, 6364👍, 0💬

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