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.