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How can JavaScript be used to improve the user interface?
How can JavaScript be used to improve the "look and feel" of a Web site? By the same token, how can JavaScript be used to improve the user interface? On their own, Web pages tend to be lifeless and flat unless you add animated images or more bandwidth-intensive content such as Java applets or other ... 2008-04-22, 5882👍, 0💬

How To Place Comments in PL/SQL
How To Place Comments in PL/SQL? - Oracle DBA FAQ - Understanding PL/SQL Language Basics There are two ways to place comments into PL/SQL codes: SQL Statement Style: Starts you comment any where in the line but prefixed with '--'. The comment ends at the end of the line. C Language Style: Starts you... 2007-05-01, 5877👍, 0💬

How To Read a File in Binary Mode
How To Read a File in Binary Mode? - PHP Script Tips - Reading and Writing Files If you have a file that stores binary data, like an executable program or picture file, you need to read the file in binary mode to ensure that none of the data gets modified during the reading process. You need to: Ope... 2007-04-23, 5877👍, 0💬

How does one suppress or customize error messages in Forms?
How does one suppress or customize error messages in Forms? One can either set the message level using the system variable SYSTEM.MESSAGE_LEVEL or trap errors using the ON-ERROR or ON-MESSAGE triggers. MESSAGE_LEVEL: Set to 0, 5, 10, 15, 20, 25 to suppress all messages with severity below this level... 2011-04-05, 5875👍, 0💬

How To Delete Existing Rows in a Table
How To Delete Existing Rows in a Table? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts If you want to remove a row from a table, you can use the DELETE statement with a WHERE clause to identify the row. The following sample script deletes one row: &lt;?php include "mysql_con... 2007-05-11, 5874👍, 0💬

Which set of preprocessor directives is used to prevent multiple inclusions of header files?
Which set of preprocessor directives is used to prevent multiple inclusions of header files? 1 #ifndef, #define and #endif 2 #ifdefined and #enddefine 3 #define and #endif only 4 #$if and #endif 5 #if and #define 2012-04-30, 5871👍, 0💬

How To Invoke the Data Pump Export Utility
How To Invoke the Data Pump Export Utility? - Oracle DBA FAQ - Loading and Exporting Data The Data Pump Export utility is distributed as executable file called "expdp.exe". To invoke this utility, you should go to the "bin" directory of your Oracle server installation and run the "expdp" command. He... 2007-05-01, 5871👍, 0💬

Iterator Interface
Is Iterator a Class or Interface? What is its use? Iterator is an interface which is used to step through the elements of a Collection. 2007-03-03, 5870👍, 0💬

How To Sort Output in Descending Order
How To Sort Output in Descending Order? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If you want to sort a column in descending order, you can specify the DESC keyword in the ORDER BY clause. The following SELECT statement first sorts the "tag" in descending order, then sorts the "counts... 2007-05-11, 5868👍, 0💬

How To Convert Dates to Character Strings
How To Convert Dates to Character Strings? - MySQL FAQs - Introduction to SQL Date and Time Handling You can convert dates to character strings using the DATE_FORMAT(date, format) function. MySQL supports the following basic formatting codes: %a Abbreviated weekday name (Sun..Sat) %b Abbreviated mon... 2007-05-11, 5866👍, 0💬

How To Position Background Images
How To Position Background Images? - CSS Tutorials - Page Layout and Background Image Design In the previous exercise, the background image is repeated on the entire background area of the DIV tag. If you want to have one copy of the image at the bottom right corner, you need to use background-repea... 2007-05-11, 5864👍, 0💬

Is Attribute Name Case Sensitive
Is Attribute Name Case Sensitive? - XHTML Tutorials - Introduction To Tag and Attribute Syntax Yes, attribute names are case sensitive. You must write all attribute names in lower case letters. Here are some valid and invalid attribute names: &lt;a href="http://dev.fyicenter.com "&gt;- Valid... 2007-05-12, 5862👍, 0💬

How To View and Change the Current Transaction Isolation Level
How To View and Change the Current Transaction Isolation Level? - MySQL FAQs - Transaction Management: Commit or Rollback If you want to view or change the current transaction isolation level, you can use the following commands: SELECT @@TX_ISOLATION FROM DUAL; -- Viewing the current transaction iso... 2007-05-11, 5862👍, 0💬

Observer Interface and Observable Class
How are Observer and Observable used? Objects that subclass the Observable class maintain a list of observers. When an Observable object is updated, it invokes the update() method of each of its observers to notify the observers that it has changed state. The Observer interface is implemented by obj... 2007-03-03, 5859👍, 0💬

What Happens to the Indexes If a Table Is Recovered
What Happens to the Indexes If a Table Is Recovered? - Oracle DBA FAQ - Managing Oracle Table Indexes If you dropped a table, and recovered it back from the recycle bin, what happens to its indexes? Are all indexes recovered back automatically? The answer is that all indexes will be recovered, if yo... 2007-05-03, 5858👍, 0💬

How To Connect to a Remote Server
How To Connect to a Remote Server? - Oracle DBA FAQ - Introduction to Oracle SQL Developer If you have an Oracle server running remotely on a network, and you know all the access information needed, you can following steps to connect your Oracle SQL Developer: Start Oracle SQL Developer Right-click ... 2007-04-26, 5858👍, 0💬

How can we check if all the validation control are valid and proper
How can we check if all the validation control are valid and proper ? Using the Page.IsValid() property you can check whether all the validation are done. 2007-10-24, 5856👍, 0💬

How To Experiment Data Locks
How To Experiment Data Locks? - MySQL FAQs - Transaction Management: Commit or Rollback If you want to have some experience with data locks, you can create two windows running two mysql transactions in two sessions. In session 1, you can run a UPDATE statement with REPEATABLE READ transaction isolat... 2007-05-11, 5853👍, 0💬

Defining Abstract Classes
How to define an Abstract class? Defining an abstract class is done using the keyword "abstract". Here is an example of abstract class: abstract class MyAbstract { protected String myString; public String getMyString() { return myString; } public abstract string getMyStringInYourWay(); } 2007-03-03, 5851👍, 0💬

What is a thread? How to use and create a thread in .NET?
What is a thread? How to use and create a thread in .NET? Can we use events with threading? Threads - When we want to run one or more instances of a method, we make use of threading. Suppose we have a method like this... Private Sub OnGoingProcess() Dim i As Integer = 1 Do While True ListBox1.Items.... 2009-03-06, 5848👍, 0💬

How did you do resource allocations
How did you do resource allocations? 2007-10-30, 5843👍, 0💬

How To Define a Sub Procedure
How To Define a Sub Procedure? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions A sub procedure is a named procedure defined and used inside another procedure or function. You need to define a sub procedure in the declaration part of the enclosing procedure or function. Sub proce... 2007-04-25, 5842👍, 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, 5840👍, 0💬

How To Divide Query Output into Groups
How To Divide Query Output into Groups? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements You can divide query output into multiple groups with the GROUP BY clause. It allows you specify a column as the grouping criteria, so that rows with the same value in the column will be considered a... 2007-04-20, 5840👍, 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