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How To Use Values from Other Tables in UPDATE Statements
How To Use Values from Other Tables in UPDATE Statements? - MySQL FAQs - Understanding SQL INSERT, UPDATE and DELETE Statements If you want to update values in one table with values from another table, you can use a subquery as an expression in the SET clause. The subquery should return only one row... 2007-05-11, 5175👍, 0💬

What Is NULL in PL/SQL
What Is NULL in PL/SQL? - Oracle DBA FAQ - Understanding PL/SQL Language Basics NULL is a reserved key word and it stands for two things in PL/SQL: NULL is an executable statement, and means doing nothing. NULL is a data balue, and means no value. The following sample script shows you examples of us... 2007-04-29, 5175👍, 0💬

How To Download Oracle Database 10g XE
How To Download Oracle Database 10g XE? - Oracle DBA FAQ - Introduction to Oracle Database 10g Express Edition If you want to download a copy of Oracle Database 10g Express Edition, visit http://www.oracle.com/technolo gy/software/products/database/ xe/.If you are using Windows systems, there are dow... 2007-04-23, 5175👍, 0💬

What Are DML Statements
What Are DML Statements? - Oracle DBA FAQ - Understanding SQL DML Statements DML (Data Manipulation Language) statements are statements to change data values in database tables. The are 3 primary DML statements: INSERT - Inserting new rows into database tables. UPDATE - Updating existing rows in dat... 2007-04-22, 5175👍, 0💬

Do I have to know HTML or SGML before I learn XML
Do I have to know HTML or SGML before I learn XML? No. Although it's useful because a lot of XML terminology and practice derives from two decades' experience of SGML. Be aware that "knowing HTML" is not the same as "understanding SGML". Although HTML was written as an SGML application, browsers ign... 2007-04-11, 5175👍, 0💬

What is the difference between System.String and System.StringBuilder classes?
Difference between System.String & System.StringBuilder Classes? System.String is immutable; System.StringBuilder was designed with the purpose of having a mutable string where a variety of operations can be performed. prefer System.StringBuilder when you are doing lot of string manuplation oper... 2009-03-06, 5174👍, 0💬

What is Windows CardSpace
What is Windows CardSpace ? It was previously known by its codename InfoCard. It is a framework by microsoft which securely stores digital identities of a user and provides a unified interface to choose the identity for a particular transaction, such as logging in to a website. Windows Card Space is... 2007-11-03, 5174👍, 0💬

How To Loop through Data Rows in the Implicit Curosr
How To Loop through Data Rows in the Implicit Curosr? - Oracle DBA FAQ - Working with Cursors in PL/SQL You use the FOR ... IN ... LOOP statement to loop through data rows in the implicit cursor as the following syntax: FOR row IN dml_statement LOOP (statement block with row.field) END LOOP; Here "r... 2007-04-29, 5174👍, 0💬

How To Write a Query with a Full Outer Join
How To Write a Query with a Full Outer Join? - Oracle DBA FAQ - Understanding SQL SELECT Query Statements If you want to query from two tables with a full outer join, you can use the FULL OUTER JOIN ... ON clause in the FROM clause. The following query returns output with a full outer join from two ... 2007-04-19, 5174👍, 0💬

How To Load Data Files into Tables with "mysqlimport"
How To Load Data Files into Tables with "mysqlimport"? - MySQL FAQs - Administrator Tools for Managing MySQL Server If you want to load a data file directly into a table, you need to prepare the data file as one line per data row, and use tab character as the column delimiter. The data file name sho... 2007-05-11, 5173👍, 0💬

What Is SQL*Plus
What Is SQL*Plus? SQL*Plus is an Oracle command line utility used for executing SQL and PL/SQL commands. The GUI version is called SQL Worksheet. 2007-04-15, 5173👍, 0💬

What Is an XHTML Element
What Is an XHTML Element? - XHTML Tutorials - Introduction To Tag and Attribute Syntax An XHTML element is the basic building block of an XHTML document. An XHTML element has the following features: An XHTML element must have a name. An XHTML element may have zero or more attributes. An XHTML elemen... 2007-05-12, 5172👍, 0💬

How To Set Page Width to a Fixed Value
How To Set Page Width to a Fixed Value? - CSS Tutorials - Page Layout and Background Image Design If you don't want your page to be resized when browser window is resized, you need to set your page width to an absolute value. Many Webmasters use TABLE tags to set page width to a fixed value. But it ... 2007-05-11, 5172👍, 0💬

Forms authentication
Forms authentication Forms authentication provides you with a way to handle authentication using your own custom logic with in an ASP.NET application. The following applies if you choose forms authentication. ? When a user requests a page for the application, ASP.NET checks for the presence of a spe... 2007-10-24, 5171👍, 0💬

What Are Heading Tags/Elements
What Are Heading Tags/Elements? - XHTML 1.0 Tutorials - Body Tag and Block Level Tags Heading elements are block level elements that can be used directly as a sub-element in the body element. You can use heading elements to specify heading in different sizes. Here are basic rules about heading eleme... 2007-05-12, 5171👍, 0💬

How To Use Different Markers on Ordered List Items
How To Use Different Markers on Ordered List Items? - XHTML 1.0 Tutorials - Understanding Lists and List Items By default, browsers will use decimal numbers as the item markers for ordered lists. If you want to change them to something else, like alphabetical letters, you need to use CSS properties.... 2007-05-11, 5171👍, 0💬

Can You Select Someone Else Database
Can You Select Someone Else Database? - MySQL FAQs - PHP Connections and Query Execution If your MySQL server is provided by an Internet service company, they will provide you one database for your use only. There are many other databases on the server for other users. But your user account will hav... 2007-05-10, 5171👍, 0💬

What Is Oracle Server Autotrace
What Is Oracle Server Autotrace? - Oracle DBA FAQ - Introduction to Command-Line SQL*Plus Client Tool Autotrace is Oracle server feature that generates two statement execution reports very useful for performance tuning: Statement execution path - Shows you the execution loop logic of a DML statement... 2007-04-29, 5171👍, 0💬

Creating External References in DTD
When constructing an XML DTD, how do you create an external entity reference in an attribute value? Every interview session should have at least one trick question. Although possible when using SGML, XML DTDs don't support defining external entity references in attribute values. It's more important ... 2007-04-11, 5171👍, 0💬

What is CODE Access security (CAS)?
.NET INTERVIEW QUESTIONS - What is CODE Access security (CAS)? CAS is part of .NET security model that determines whether or not a piece of code is allowed to run and what resources it can use while running. Example CAS will allow an application to read but not to write and delete a file or a resour... 2010-04-27, 5170👍, 0💬

What is Asynchronous One-Way Calls ?
.NET INTERVIEW QUESTIONS - One-way calls are a different from asynchronous calls from execution angle that the .NET Framework does not guarantee their execution. In addition, the methods used in this kind of call cannot have return values or out parameters. One-way calls are defined by using [OneWay... 2009-09-15, 5168👍, 0💬

What is Reference counting in COM ?
.NET INTERVIEW QUESTIONS - What is Reference counting in COM ? Reference counting is a memory management technique used to count how many times an object has a pointer referring to it. The first time it is created, the reference count is set to one. When the last reference to the object is nulled, t... 2010-01-19, 5167👍, 0💬

How can we make a thread sleep for infinite period ?
.NET INTERVIEW QUESTIONS - How can we make a thread sleep for infinite period ? You can also place a thread into the sleep state for an indeterminate amount of time by calling Thread.Sleep (System.Threading.Timeout.Infi nite).To interrupt this sleep you can call the Thread.Interrupt method. 2009-11-24, 5167👍, 0💬

What Is a FORM Tag/Element
What Is a FORM Tag/Element? - XHTML 1.0 Tutorials - Understanding Forms and Input Fields A "form" element is a block element that you can use to define an input form with input fields. Here are basic rules about a "form" element: "form" elements are block elements. A "form" element can have empty co... 2007-05-12, 5167👍, 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