Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/lsp4you/public_html/connect.php on line 2 LSP4YOU - Learner's Support Publications
Responsive image

Unit_1: Introduction

Unit 1: Introduction (12 hrs.)

Characteristics of the Database Approach - Database users : DBA, Database Designers, End users - Advantages of using the DBMS Approach - Data models, Schemas, and Instances - ThreeSchema Architecture and Data Independence. DBMS Languages: DDL, DML - The Database System Environment: DBMS Component Modules.

Database is a collection of data and Management System is a set of programs to store and retrieve those data. Based on this we can define DBMS like this:
  • DBMS is a collection of inter-related data and set of programs to store and access those data in an easy and effective manner.
  • A database system is basically a computer based record keeping system.
  • A DBMS is a collection of interrelated data and a set of programs to access those data.
  • The primary goal of a DBMS is to provide a way to store and retrieve database information.