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What Is the Author META Tag/Element
What Is the Author META Tag/Element? - XHTML 1.0 Tutorials - Document Structure and Head Level Tags The author meta element is a special meta element that provides information about the author of the XHTML document. The author meta element must include the "name" attribute as, name="author". Here is...
2007-05-12, 5415👍, 0💬

How To Convert Strings to Numbers
How To Convert Strings to Numbers? - PHP Script Tips - Understanding String Literals and Operations In a numeric context, PHP will automatically convert any string to a numeric value. Strings will be converted into two types of numeric values, double floating number and integer, based on the followi...
2007-04-20, 5415👍, 0💬

What Is a Savepoint
What Is a Savepoint? Savepoint is a point within a particular transaction to which you may rollback without rolling back the entire transaction.
2007-04-15, 5415👍, 0💬

What Is the HEAD Tag/Element
What Is the HEAD Tag/Element? - XHTML 1.0 Tutorials - Document Structure and Head Level Tags The head element is the second element you need to learn. The head element is used to provide information about the XHTML document. The head element should not be used to contain any contents of the XHTML do...
2007-05-12, 5414👍, 0💬

How To List All Indexes in Your Schema
How To List All Indexes in Your Schema? - Oracle DBA FAQ - Managing Oracle Table Indexes If you log in with your Oracle account, and you want to get a list of all indexes in your schema, you can get it through the USER_INDEXES view with a SELECT statement, as shown in the following SQL script: SELEC...
2007-05-02, 5414👍, 0💬

How To Insert a Record into a Table
How To Insert a Record into a Table? - Oracle DBA FAQ - Working with Database Objects in PL/SQL If you have a RECORD variable with data fields matching a table structure, you can insert a row to this table with this RECORD variable using the INSERT statement as shown in the example below: CREATE TAB...
2007-04-26, 5413👍, 0💬

How To Get All the Values Out of an Array
How To Get All the Values Out of an Array? - PHP Script Tips - PHP Built-in Functions for Arrays Function array_values() returns a new array that contains all the keys of a given array. Here is a PHP script on how to use array_values(): &lt;?php $mixed = array(); $mixed["Zero"] = "PHP"; $mixed[1...
2007-04-21, 5413👍, 0💬

What Are Character Functions
What Are Character Functions? Character Functions are INITCAP, UPPER, LOWER, SUBSTR and LENGTH. Additional functions are GREATEST and LEAST.
2007-04-15, 5413👍, 0💬

How To Use Group Functions in the SELECT Clause
How To Use Group Functions in the SELECT Clause? - MySQL FAQs - SQL SELECT Query Statements with GROUP BY If group functions are used in the SELECT clause, they will be used on the rows that meet the query selection criteria, the output of group functions will be returned as output of the query. The...
2007-05-11, 5412👍, 0💬

DOM and XML
What is DOM and how does it relate to XML? The Document Object Model (DOM) is an interface specification maintained by the W3C DOM Workgroup that defines an application independent mechanism to access, parse, or update XML data. In simple terms it is a hierarchical model that allows developers to ma...
2007-04-11, 5412👍, 0💬

What are the different types of joins? What is the difference between them
What are the different types of joins? What is the difference between them ? INNER JOIN Inner join shows matches only when they exist in both tables.Example, in the below SQL there are two tables Customers and Orders and the inner join in made on Customers Customerid and Orders Customerid.So this SQ...
2007-10-25, 5411👍, 0💬

What are the practical limitations of using COM objects?
Managed Code and Unmanaged Code related ASP.NET - What are the practical limitations of using COM objects? The following are the practical limitations of using COM objects from .NET: Shared solutions might not allow COM objects : ASP.NET host service providers that use nondedicated servers can limit...
2009-04-21, 5410👍, 0💬

How To Select an Exiting Database
How To Select an Exiting Database? - MySQL FAQs - PHP Connections and Query Execution The first thing after you have created a connection object to the MySQL server is to select the database where your tables are located, by using the mysql_select_db() function. If your MySQL server is offered by yo...
2007-05-10, 5409👍, 0💬

How To Specify Domain and Path for a Cookie
How To Specify Domain and Path for a Cookie? - PHP Script Tips - Understanding and Managing Cookies If you want to specify domain and path for cookie, you can use the setcookie() function with two extra parameters. The sample PHP script below shows you how to set the domain and path attributes for t...
2007-04-24, 5409👍, 0💬

What is ReaderWriter Locks ?
.NET INTERVIEW QUESTIONS - 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 modifyi...
2009-12-29, 5408👍, 0💬

What is LOCK escalation
What is LOCK escalation? Lock escalation is the process of converting of low level locks (like row locks, page locks) into higher level locks (like table locks). Every lock is a memory structure too many locks would mean, more memory being occupied by locks. To prevent this from happening, SQL Serve...
2007-10-25, 5408👍, 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, 5408👍, 0💬

What Is the Implicit Cursor
What Is the Implicit Cursor? - Oracle DBA FAQ - Working with Cursors in PL/SQL There is only one implicitly cursor in a session. The implicit cursor is the cursor automatically defined by PL/SQL for you. Whenever a SQL statement is executed, this cursor will be assigned to represent the execution of...
2007-04-29, 5408👍, 0💬

How To Append New Data to the End of a File
How To Append New Data to the End of a File? - PHP Script Tips - Reading and Writing Files If you have an existing file, and want to write more data to the end of the file, you can use the fopen($fileName, "a") function. It opens the specified file, moves the file pointer to the end of the file, and...
2007-04-22, 5408👍, 0💬

What class allows you to read objects directly from a stream?
What class allows you to read objects directly from a stream? The ObjectInputStream class supports the reading of objects from input streams.
2012-07-31, 5407👍, 0💬

What Are DDL Statements
What Are DDL Statements? - MySQL FAQs - Understanding SQL CREATE, ALTER and DROP Statements DDL (Data Definition Language) statements are statements to create and manage data objects in the database. The are 3 primary DDL statements: CREATE - Creating a new database object. ALTER - Altering the defi...
2007-05-11, 5407👍, 0💬

What Is the Scope of a Variable Defined outside a Function
What Is the Scope of a Variable Defined outside a Function? - PHP Script Tips - Creating Your Own Functions A variable defined outside any functions in main script body is called global variable. However, a global variable is not really accessible globally any in the script. The scope of global vari...
2007-04-24, 5407👍, 0💬

What To Do If the StartBD.bat Failed to Start the XE Instance
What To Do If the StartBD.bat Failed to Start the XE Instance? - Oracle DBA FAQ - Introduction to Oracle Database 10g Express Edition If StartBD.bat failed to start the XE instance, you need to try to start the instance with other approaches to get detail error messages on why the instance can not b...
2007-04-24, 5407👍, 0💬

What is project management?
What is project management Applying knowledge, skills, tools, techniques in project and deliver project deliverables is a short definition of project management.It’s basically managing project time, cost and scope.
2007-10-30, 5406👍, 0💬

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