science and technology

What is a database It is a coherent collection of data with some inherent meaning, built and populated with data for a specific purpose. A database stores data that is useful to us. This data is only a part of the entire data available in the world around us. To be able to successfully design and maintain database we have to do the following: Ø   Identify which part of the word’s data is of interest to us. Ø   Identify what specific objects in that part of the word’s data are of interest to us. Ø   Identify a relationship between the objects.   Software houses took up the challenge of designing a system that would help users in managing data in a database. These systems were called Database Management Systems (DBMS). Some of the DBMS developed by software houses were Oracle, Ingress, Sybase, etc. Let us look at Oracle as a Database Management System (DBMS). Introduction to Oracle and Its Tools: The Oracle product is primarily divided into   Oracle s

PHP INTRODUCTION PHP is a programming language for building dynamic, interactive Web sites. As a general rule, PHP programs run on a Web server, and serve web pages to visitors on request. One of the key features of PHP is that you can embed PHP code within HTML Web pages, making it very easy for you to create dynamic content quickly. PHP stands for PHP: Hypertext Preprocessor, which means gives you a good idea of its core purpose: to process information and produce hypertext (HTML) as a result.(Developers love recursive acronyms, and PHP . Hypertext Processor is a good example of one.) Installing PHP To create and run PHP scripts, you need to have a few things in place: ·          A computer running web server software, such as Apache or Internet Information Server(IIS). ·          The PHP server module installed on the same computer. This module talks to the Web server software; this is the PHP engine that actually does the work of turning your PHP scripts.