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Can you describe IUKNOWN interface in short
Can you describe IUKNOWN interface in short ? Every COM object supports at least one interface, the IUnknown interface. All interfaces are classes derived from the base class IUnknown. Each interface supports methods access data and perform operations transparently to the programmer. For example, IU... 2007-10-22, 5124👍, 0💬

How To Get Help Information from the Server
How To Get Help Information from the Server? - MySQL FAQs - Command-Line End User Interface mysql While you are at the "mysql>" prompt, you can get help information from the server by using the "HELP" command. The tutorial exercise below shows sevearal examples: >cd \mysql\bin >mysql -u root mysql> ... 2007-05-10, 5124👍, 0💬

Why Is the Top Margin Not Showing
Why Is the Top Margin Not Showing? - CSS Tutorials - Understanding Multiple Element Formatting Rules If you are expecting a top margin to show up, and it is not showing up, it's probably because of the vertical margins collapsed due the following rules: Between two block elements - The bottom margin... 2007-05-11, 5123👍, 0💬

How To Filter Out Duplications in the Returning Rows
How To Filter Out Duplications in the Returning Rows? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If there are duplications in the returning rows, and you want to remove the duplications, you can use the keyword DISTINCT in the SELECT clause. The DISTINCT applies to the combination of a... 2007-05-11, 5123👍, 0💬

How To Check Your Oracle Database 10g XE Installation
How To Check Your Oracle Database 10g XE Installation? - Oracle DBA FAQ - Introduction to Oracle Database 10g Express Edition If you want to check your fresh installation of 10g Express Edition without using any special client programs, you can use a Web browser with this address, http://localhost:8... 2007-04-24, 5123👍, 0💬

How To Update an Existing Rows in a Table
How To Update an Existing Rows in a Table? - PHP Script Tips - Working with MySQL Database 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 include "mysql_conn... 2007-04-19, 5123👍, 0💬

How To Create a New Table
How To Create a New Table? - MySQL FAQs - Understanding SQL CREATE, ALTER and DROP Statements If you want to create a new table, you can use the "CREATE TABLE" statement. The following tutorial script shows you how to create a table called "tip": mysql> CREATE TABLE tip (id INTEGER PRIMARY KEY, subj... 2007-05-11, 5122👍, 0💬

How To Rename a Tablespace
How To Rename a Tablespace? - Oracle DBA FAQ - Managing Oracle Tablespaces and Data Files You can easily rename a tablespace by using the ALTER TABLESPACE ... RENAME TO statement as shown in the example below: SQL> CREATE TABLESPACE my_space 2 DATAFILE '/temp/my_space.dbf' SIZE 10M; Tablespace creat... 2007-05-03, 5122👍, 0💬

How To Retrieve Data from an Explicit Cursor
How To Retrieve Data from an Explicit Cursor? - Oracle DBA FAQ - Working with Cursors in PL/SQL If you have a cursor opened ready to use, you can use the FETCH ... INTO statement to retrieve data from the cursor into variables. FETCH statement will: Retrieve all the fields from the row pointed by th... 2007-04-29, 5122👍, 0💬

How To Define an Anonymous Procedure with Variables
How To Define an Anonymous Procedure with Variables? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions Anonymous procedure is a procedure without any name. If you have some variables to declare, you can define an anonymous procedure by using the DECLARE keyword in SQL*Plus as show... 2007-04-26, 5122👍, 0💬

How To Install Oracle Database 10g XE
How To Install Oracle Database 10g XE? - Oracle DBA FAQ - Introduction to Oracle Database 10g Express Edition To install 10g universal edition, double click, OracleXEUniv.exe, the install wizard starts. It will guide you to finish the installation process. You should take notes about: The SYSTEM pas... 2007-04-24, 5122👍, 0💬

How To Establish Administrator Authentication to the Server
How To Establish Administrator Authentication to the Server? - Oracle DBA FAQ - Creating New Database Instance Manually This is Step 2. There are two ways to establish administrator authentication to a new database. Use a password file. Use operating system (OS) authentication. Using OS authenticati... 2007-04-22, 5122👍, 0💬

How To Apply UUEncode to a String
How To Apply UUEncode to a String? - PHP Script Tips - PHP Built-in Functions for Strings UUEncode (Unix-to-Unix Encoding) is a simple algorithm to convert a string of any characters into a string of printable characters. UUEncode is reversible. The reverse algorithm is called UUDecode. PHP offeres ... 2007-04-21, 5122👍, 0💬

What does the term sticky session mean in a web-farm scenario?
What does the term sticky session mean in a web-farm scenario? Why would you use a sticky session? What is the potential disadvantage of using a sticky session? Sticky session refers to the feature of many commercial load balancing solutions for web-farms to route the requests for a particular sessi... 2008-11-04, 5121👍, 0💬

What Is a Procedure
What Is a Procedure? - Oracle DBA FAQ - Creating Your Own PL/SQL Procedures and Functions 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... 2007-04-26, 5121👍, 0💬

How To Create a Testing Table
How To Create a Testing Table? - Oracle DBA FAQ - Understanding SQL DML Statements If you want to practice DML statements, you should create a testing table as shown in the script below: CREATE TABLE fyi_links (id NUMBER(4) PRIMARY KEY, url VARCHAR2(80) NOT NULL, notes VARCHAR2(1024), counts NUMBER,... 2007-04-22, 5121👍, 0💬

How Values in Arrays Are Indexed
How Values in Arrays Are Indexed? - PHP Script Tips - Understanding PHP Arrays and Their Basic Operations Values in an array are all indexed their corresponding keys. Because we can use either an integer or a string as a key in an array, we can divide arrays into 3 categories: Numerical Array - All ... 2007-04-20, 5121👍, 0💬

How To Use LIKE Conditions
How To Use LIKE Conditions? - MySQL FAQs - Introduction to SQL Basics A LIKE condition is also called pattern patch. There are 3 main rules on using LIKE condition: '_' is used in the pattern to match any one character. '%' is used in the pattern to match any zero or more characters. ESCAPE clause i... 2007-05-11, 5119👍, 0💬

How To Download Oracle SQL Developer
How To Download Oracle SQL Developer? - Oracle DBA FAQ - Introduction to Oracle SQL Developer If you want to download a copy of Oracle SQL Developer, visit http://www.oracle.com/technolo gy/software/products/sql/.If you are using Windows systems, click the "Oracle SQL Developer for Windows" link. Th... 2007-04-26, 5119👍, 0💬

What Is a P Tag/Element
What Is a P Tag/Element? - XHTML 1.0 Tutorials - Body Tag and Block Level Tags A p element is a block level element that can be used directly as a sub-element in the body element. You can use p elements to specify paragraphs of text and in-line elements. Here are basic rules about p elements: "p" el... 2007-05-12, 5118👍, 0💬

How To Store CSS Definitions in External Files
How To Store CSS Definitions in External Files? - CSS Tutorials - Introduction To CSS Basics If you want to share a set of CSS definitions with multiple HTML documents, you should those CSS definitions in an external file, and link it to those HTML documents using the LINK tag in the HEAD tag as: &a... 2007-05-11, 5118👍, 0💬

What Web sites do you feel use JavaScript most effectively
What Web sites do you feel use JavaScript most effectively (i.e., best-in-class examples)? The worst? The best sites are the ones that use JavaScript so transparently, that I'm not aware that there is any scripting on the page. The worst sites are those that try to impress me with how much scripting... 2008-09-09, 5117👍, 0💬

What Is a Result Set Object
What Is a Result Set Object? - PHP Script Tips - Working with MySQL Database A result set object is a logical representation of data rows returned by mysql_query() function on SELECT statements. Every result set object has an internal pointer used to identify the current row in the result set. Once ... 2007-04-19, 5117👍, 0💬

Who Is Responsible for XML
Who is responsible for XML? XML is a project of the World Wide Web Consortium (W3C), and the development of the specification is supervised by an XML Working Group. A Special Interest Group of co-opted contributors and experts from various fields contributed comments and reviews by email. XML is a p... 2007-04-11, 5117👍, 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