Database Concepts




Introduction

A database system is basically a computer based recording keeping system. The collection of data is usually referred to as the database, contains information about the one particular enterprise. It maintains any information that may be necessary to decision making process involved in the management of that organisation .


What is database ?

A database is a collection of interrelated data and a database system is basically a computer based record keeping system.

Purpose of databases

 1. Database reduce the data redundancy to a large extent.
2. Database can control data inconsistency to large extent.
3. Database facilitate sharing of data.
4. Database enforce standards.

What is data redundancy?

Duplication of data is known as data redundancy.

What is data security?

Data security refers to a protection of data against accidental or international disclosure to unauthorized persons, for unauthorized modification or destruction.
What is privacy of data?
Privacy of data refers to the rights of individuals or organisation to determine for themselves when, how and to what extent information about them is to be transmitted to others.

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