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What Is Synchronization
What do you understand by Synchronization? Synchronization is a process of controlling the access of shared resources by the multiple threads in such a manner that only one thread can access one resource at a time. In non synchronized multithreaded application, it is possible for one thread to modif...
2007-03-03, 5259👍, 0💬

Perl uses single or double quotes to surround a zero
Perl uses single or double quotes to surround a zero or more characters. Are the single(' ') or double quotes (" ") identical? They are not identical. There are several differences between using single quotes and double quotes for strings: The double-quoted string will perform variable interpolation...
2007-11-26, 5256👍, 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, 5254👍, 0💬

What Is the Icon for RSS and Atom
What Is the Icon for RSS and Atom? - RSS FAQs - Introduction to RSS (Really Simple Syndication) Basics The Web browser and Website syndication industry has adopted a standard icon to identify syndicated content as shown below: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
2007-05-12, 5252👍, 0💬

How To Set Page Width Relative To the Browser Width
How To Set Page Width Relative To the Browser Width? - CSS Tutorials - Page Layout and Background Image Design The easiest way to set your page width is to not set any page width. Your page width will be equal to the browser window's width minus margins. If you want to try this, you can enter the fo...
2007-05-11, 5249👍, 0💬

How To List All User Accounts
How To List All User Accounts? - Oracle DBA FAQ - Managing Oracle User Accounts, Schema and Privileges User accounts can be accessed through a system view called ALL_USERS. A simple SELECT statement can be used to get a list of all user accounts. Try the following script: >.\bin\sqlplus /nolog SQL> ...
2007-05-02, 5249👍, 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, 5249👍, 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, 5248👍, 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, 5247👍, 0💬

What Are the Differences between BLOB and CLOB
What Are the Differences between BLOB and CLOB? - Oracle DBA FAQ - Understanding SQL Basics The main differences between BLOB and CLOB are: BLOB stores values as LOB (Large OBject) in bitstreams. CLOB stores values as LOB (Large OBject) in character steams.
2007-04-24, 5244👍, 0💬

What Is a Procedure
What Is a Procedure? - Oracle DBA FAQ - Understanding PL/SQL Language Basics A procedure is a named program unit. It consists of three parts: Declaration Part - Defining the procedure name, calling parameters, local variables and local procedures. Declaration part is required. Execution Part - Defin...
2007-04-30, 5243👍, 0💬

What Is Stored Program Unit
What Is Stored Program Unit? - Oracle DBA FAQ - Introduction to PL/SQL A stored program unit is a named block of codes which: Has a name. Can take parameters, and can return values. Is stored in the data dictionary. Can be called by many users.
2007-04-25, 5243👍, 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, 5242👍, 0💬

How To Omit Columns with Default Values in INSERT Statement
How To Omit Columns with Default Values in INSERT Statement? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If you don't want to specify values for columns that have default values, or you want to specify values to columns in an order different than how they are defined, you c...
2007-05-11, 5241👍, 0💬

Modifiers on Inner Classes
What modifiers may be used with an inner class that is a member of an outer class? A inner class may be declared as public, protected, private, static, final, or abstract.
2007-03-03, 5241👍, 0💬

What are COM objects?
Managed Code and Unmanaged Code related ASP.NET - What are COM objects? COM objects are another type of unmanaged code that you can use from .NET assemblies. Because COM is widely used, Visual Studio includes built-in tools for importing and using COM objects within .NET assemblies. Visual Studio al...
2009-04-07, 5239👍, 0💬

Can one Maximize/ Minimize a Window in Forms?
Can one Maximize/ Minimize a Window in Forms? On MS-Windows, Forms run inside a Windows Multiple-Document Interface (MDI) window. You can use SET_WINDOW_PROPERTY on the window called FORMS_MDI_WINDOW to resize this MDI (or any other named) window. Examples: set_window_property(FORMS_MDI_ WINDOW,WIND...
2011-03-29, 5238👍, 0💬

How To End the Current Transaction
How To End the Current Transaction? - MySQL FAQs - Transaction Management: Commit or Rollback There are several ways the current transaction can be ended implicitly or explicitly: In "Autocommit On" mode, a single-statement transaction will be ended implicitly when the execution of the statement end...
2007-05-11, 5237👍, 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, 5237👍, 0💬

How To Update Values on Multiple Rows
How To Update Values on Multiple Rows? - Oracle DBA FAQ - Understanding SQL DML Statements If the WHERE clause in an UPDATE matches multiple rows, the SET clause will be applied to all matched rows. This rule allows you to update values on multiple rows in a single UPDATE statement. Here is a good e...
2007-04-21, 5237👍, 0💬

Can You Assign Multiple Query Result Rows To a Variable
Can You Assign Multiple Query Result Rows To a Variable? - Oracle DBA FAQ - Working with Database Objects in PL/SQL You can use "SELECT ... INTO variable" to assign query results to variables. But what happens if the SELECT statements return multiple rows? The answer is that you will get a run time ...
2007-04-27, 5233👍, 0💬

How To Remove White Spaces from the Beginning and/or the End of a String
How To Remove White Spaces from the Beginning and/or the End of a String? - PHP Script Tips - PHP Built-in Functions for Strings There are 4 PHP functions you can use remove white space characters from the beginning and/or the end of a string: trim() - Remove white space characters from the beginnin...
2007-04-22, 5232👍, 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, 5231👍, 0💬

What’s the difference between localization and globalization
What’s the difference between localization and globalization? Below are the definition’s which is taken from the Microsoft glossary. Globalization: It is the process of developing a program core whose features and code design are not solely based on a single language or locale. Localization: The pro...
2007-11-01, 5230👍, 0💬

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