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What Happens If Recursive Calls Get Out of Control
What Happens If Recursive Calls Get Out of Control? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions What happens if your code has bug on recursive procedure calls, which causes an infinite number nested procedure calls? The answer is so good. Oracle server seems to offer no prot... 2007-04-25, 5821👍, 0💬

How many objects are created in the following piece of code?
How many objects are created in the following piece of code? MyClass c1, c2, c3; c1 = new MyClass (); c3 = new MyClass (); Only 2 objects are created, c1 and c3. The reference c2 is only declared and not initialized. 2013-07-01, 5819👍, 0💬

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, 5819👍, 0💬

What is ReaderWriter Locks
What is ReaderWriter Locks ? You may want to lock a resource only when data is being written and permit multiple clients to simultaneously read data when data is not being updated. The ReaderWriterLock class enforces exclusive access to a resource while a thread is modifying the resource, but it all... 2007-10-22, 5818👍, 0💬

What Is Binary Log File
What Is Binary Log File? - MySQL FAQs - Server Daemon mysqld Administration MySQL server binary log file plays an important role in restoring database changes to the server. Main features on binary log files are: Binary logs can be turned on by "--log-bin=fileBaseName" option on "mysqld". Binary log... 2007-05-11, 5818👍, 0💬

How To Write Date and Time Interval Literals
How To Write Date and Time Interval Literals? - Oracle DBA FAQ - Understanding SQL Basics Date and time interval literals can coded as shown in the following samples: SELECT DATE '2002-10-03' + INTERVAL '123-2' YEAR(3) TO MONTH FROM DUAL -- 123 years and 2 months is added to 2002-10-03 03-DEC-25 SEL... 2007-04-23, 5818👍, 0💬

How To Concatenate Two Text Values
How To Concatenate Two Text Values? - Oracle DBA FAQ - Understanding SQL Basics There are two ways to concatenate two text values together: CONCAT() function. '||' operation. Here is some examples on how to use them: SELECT 'FYI' || 'Center' || '.com' FROM DUAL; FYICenter.com SELECT CONCAT('FYICente... 2007-04-23, 5818👍, 0💬

What Is JSP Technology
What is JSP technology? Java Server Page is a standard Java extension that is defined on top of the servlet Extensions. The goal of JSP is the simplified creation and management of dynamic Web pages. JSPs are secure, platform-independent, and best of all, make use of Java as a server-side scripting ... 2007-04-03, 5817👍, 0💬

Can You Provide a List of Assertion Methods Supported by JUnit 4.4
Can You Provide a List of Assertion Methods Supported by JUnit 4.4? You should be able to answer this question by looking up the org.junit.Assert class API document. Here is a list of assertino methods supported by JUnit 4.4: assertEquals(expected, actual) assertEquals(message, expected, actual) ass... 2008-01-22, 5815👍, 0💬

What is Thread.Join() in threading
What is Thread.Join() in threading ? There are two versions of Thread.Join :- ? Thread.join(). ? Thread.join(Integer) this returns a Boolean value. The Thread.Join method is useful for determining if a thread has completed before starting another task. The Join method waits a specified amount of tim... 2007-10-22, 5814👍, 0💬

What is the main difference between Gridlayout and FlowLayout
What is the main difference between Gridlayout and FlowLayout ? GridLayout provides absolute positioning for controls placed on the page. Developers that have their roots in rich-client development environments like Visual Basic will find it easier to develop their pages using absolute positioning, ... 2007-10-24, 5810👍, 0💬

How can we create custom controls in ASP.NET
How can we create custom controls in ASP.NET ? User controls are created using .ASCX in ASP.NET. After .ASCX file is created you need to two things in order that the ASCX can be used in project:. ? Register the ASCX control in page using the ? Now to use the above accounting footer in page you can u... 2007-10-24, 5810👍, 0💬

What Are the Main Differences between Atom 1.0 and RSS 2.0
What Are the Main Differences between Atom 1.0 and RSS 2.0? - RSS FAQs - Atom Feed Introduction and File Generation Main differences between Atom 1.0 and RSS 2.0: Atom has separate "summary" and "content" elements, while RSS only has one "description" element. Atom standardizes auto-discovery in con... 2007-05-12, 5808👍, 0💬

Declaring Methods within JSP Pages
How can I declare methods within my JSP page? You can declare methods for use within your JSP page as declarations. The methods can then be invoked within any other methods you declare, or within JSP scriptlets and expressions. Do note that you do not have direct access to any of the JSP implicit ob... 2007-04-03, 5808👍, 0💬

How To Reformat a Paragraph of Text
How To Reformat a Paragraph of Text? - PHP Script Tips - PHP Built-in Functions for Strings You can wordwrap() reformat a paragraph of text by wrapping lines with a fixed length. Here is a PHP script on how to use wordwrap(): &lt;?php $string = "TRADING ON MARGIN POSES ADDITIONAL RISKS AND IS NO... 2007-04-21, 5805👍, 0💬

Finally Clause Execution
The code in a finally clause will never fail to execute, right? Not really. Using System.exit(1); in try block will not allow finally code to execute. 2007-04-03, 5804👍, 0💬

How To Calculate the Difference between Two Time Values
How To Calculate the Difference between Two Time Values? - MySQL FAQs - Introduction to SQL Date and Time Handling If you have two time values, and you want to know the time difference between them, you can use the TIMEDIFF(time1, time2) function as shown below: SELECT TIMEDIFF(TIME('19:26:50'), TIM... 2007-05-11, 5801👍, 0💬

What are different IIS isolation levels
What are different IIS isolation levels? IIS has three level of isolation:- LOW (IIS process):- In this main IIS process and ASP.NET application run in same process. So if any one crashes the other is also affected. Example let’s say (well this is not possible) I have hosted yahoo, hotmail .amazon a... 2007-10-24, 5800👍, 0💬

What is difference between abstract classes and
What is difference between abstract classes and interfaces? Following are the differences between abstract and interfaces :- ? Abstract classes can have concrete methods while interfaces have no methods implemented. ? Interfaces do not come in inheriting chain, while abstract classes come in inherit... 2007-10-23, 5800👍, 0💬

What Happens If a Hyper Link Points to a ZIP File
What Happens If a Hyper Link Points to a ZIP File? - XHTML 1.0 Tutorials - Understanding Hyper Links and URLs If you want to build a hyper link to allow visitors to access a ZIP file by clicking a hyper link, you can put the URL of the ZIP file directly in the "href" attribute of the hyper link. If ... 2007-05-12, 5796👍, 0💬

How To Sort the Query Output
How To Sort the Query Output? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If you want the returning rows to be sorted, you can specify a sorting expression in the ORDER BY clause. The simplest sort expression is column name who's values will be sorted by. The following select statement ... 2007-05-11, 5795👍, 0💬

What Is the Relation between XHTML and the Web
What Is the Relation between XHTML and the Web? - XHTML FAQs - Introduction To XHTML 1.0 The Web is a publisher technology based on the Internet to allow publishers to publish hyper linked documents to be viewed by Internet users. XHTML is the next generation language that used to compose those hype... 2007-05-12, 5794👍, 0💬

Overriding JSP Methods
What JSP lifecycle methods can I override? You cannot override the _jspService() method within a JSP page. You can however, override the jspInit() and jspDestroy() methods within a JSP page. jspInit() can be useful for allocating resources like database connections, network connections, and so forth... 2007-04-03, 5793👍, 0💬

How to detect the operating system on the client machine?
How to detect the operating system on the client machine? In order to detect the operating system on the client machine, use this property, navigator.platform[]. It will tell you the platform of the cient machine like: Win32. 2008-04-01, 5792👍, 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