Some Short Note - 3

Bubble Sort:
Bubble sort is a sorting method which repeatedly exchanges various pairs of data items until they are in order.

Leaf of a Tree:
A terminal node is called a leaf.

Depth of tree:
The depth of a tree is a maximum number nodes in a branch of T.

Binary Search:
A binary search is a technique for quickly locating  an item in a sequential list.

Binary Tree:
A binary tree is a finite set of nodes where each node contain a left pointer a right pointer and add a data element.

Difference between Copies and similar in a tree:
Binary tree T and T are said to be similar if they have the same structure or they have  same node.
The tree are said to be copies if they are similar and if they have the same contents at corresponding nodes.

Some Short Note - 2

Linear Array:
The simplest type of data structure is a linear array. Linear arrays are called one dimensional arrays because each element in such an array is referenced by one subscript.

Queue:
A queue also called a First-In First-Out (FIFO) system is a linear list in which deletions can take place only at one end of the list, the "front" of the list, and insertions can take place only at the other end of the list, the "rear" of the list.

Trees:
Data frequently contain a hierarchical relationship between various elements. The data structure which reflects this relationship is called a rooted true graph or simply a tree.

Complete Binary Tree:
A complete binary tree is a binary tree in which every level, except possibly the last, is completely field and all nodes are as for left as possible.

Some Short Note - 1

Data Structure :

Data structure is a logical mathematical way of sorting and organizing data in a computer that can be used efficiently.

Entity:

An entity is something that has certain attributes or properties which may be assigned values. The values themselves may be    either numeric or no-numeric.

Field:

A field is a single elementary unit of information representing an attribute of an entity.


Record:

 A record is the  collection of field values of a given entity.


String: 
A string is a finite sequence of symbols that are chosen from a set or alphabet.

String length:

The string with zero characters in a string is called its length.

Concatenation:
Concatenation is to link together two or more units of  information so that they form one unit.


 

E-Payement

E payment is a subset of an e-commerce transaction to include electronic payment for buying and selling goods or services offered through the Internet. Generally we think of electronic payments as referring to online transactions on the internet, there are actually many forms of electronic payments. As technology developing, the range of devices and processes to transact electronically continues to increase while the percentage of cash and check transactions continues to decrease

E-Money

Electronic money (also known as e-currency, e-money, electronic cash, electronic currency, digital money, digital cash, digital currency, cyber currency) is money or scrip that is only exchanged electronically. Typically, this involves the use of computer networks, the internet and digital stored value systems. electronic funds transfer (EFT), direct deposit, digital gold currency and virtual currency are all examples of electronic money. Also, it is a collective term for financial cryptography and technologies enabling it.

Electronic data interchange (EDI)

Electronic data interchange (EDI) is the structured transmission of data between organizations by electronic means. It is used to transfer electronic documents or business data from one computer system to another computer system, i.e. from one trading partner to another trading partner without human intervention. It is more than mere e-mail; for instance, organizations might replace bills of lading and even cheques with appropriate EDI messages. It also refers specifically to a family of standards.

Internet Marketing

Internet marketing, also known as digital marketing, web marketing, online marketing, search marketing or e-marketing, is referred to as the marketing (generally promotion) of products or services over the Internet. iMarketing is used as an abbreviated form for Internet Marketing
Internet marketing is considered to be broad in scope  because it not only refers to marketing on the Internet, but also includes marketing done via e-mail and wireless media. Digital customer data and electronic customer relationship management (ECRM) systems are also often grouped together under internet marketing.
Internet marketing ties together the creative and technical aspects of the Internet, including design, development, advertising, and sales. Internet marketing also refers to the placement of media along many different stages of the customer engagement cycle through search engine marketing (SEM), search engine optimization (SEO), banner ads on specific websites, email marketing, mobile advertising, and Web 2.0 strategies.^[

E-Commerce

Electronic commerce or ecommerce is a term for any type of business, or commercial transaction, that involves the transfer of information across the Internet. It covers a range of different types of businesses, from consumer based retail sites, through auction or music sites, to business exchanges trading goods and services between corporations. It is currently one of the most important aspects of the Internet to emerge.
Ecommerce allows consumers to electronically exchange goods and services with no barriers of time or distance. Electronic commerce has expanded rapidly over the past five years and is predicted to continue at this rate, or even accelerate. In the near future the boundaries between "conventional" and "electronic" commerce will become increasingly blurred as more and more businesses move sections of their operations onto the Internet.

How can you connect to MySQL from PHP?

Ans.  

Create a Connection to a MySQL Database

In PHP, this is done with the mysql_connect() function.

In the following example we store the connection in a variable ($con) for later use in the script. The "die" part will be executed if the connection fails:

<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

// some code
?>