Day: May 4, 2007

Data Modeling Overview

Exforsys
Data Modeling Overview Data modeling refers to the process whereby data is structured and organized. It is a key component in the field of computer science. Once data is structured, it is usually then implemented into what is called a database management system. The main idea behind these systems is to manage vast amounts of both structured and unstructured data. Unstructured data include documents, word processing, e-mail messages, pictures, and digital video and audio files. Structured data – what is needed to make a data model (via a data model… Read More

JSP Implicit and Session Objects

Exforsys
JSP Implicit and Session Objects In this JPS tutorial, you will learn how to program using JSP, JSP expressions and Implicit Objects, JSP Session Object, methods of session object, getAttribute(String name), getAttributeNames and isNew(). JSP expressions: If a programmer wants to insert data into an HTML page, then this is achieved by making use of the JSP expression. General syntax: The general syntax of JSP expression is as follows: <%= expression %> The expression is enclosed between the tags <%= %> For example, if the programmer wishes to add 10… Read More