Data Base Management ! Batra Computer Centre

Ph. No.: 8222066670, 4000670 Website: www.batracomputercentre.com

ISO Certified 9001:2008


Data is a vital part of any organization. It need to be stored, organized, managed, accessed, protected and manipulated.

Operational Use databases to :

* Create a book* Track book sales* Set salaries or wages* Pay employees


The purpose of database is to keep track of things

Unlike a list or spreadsheets, a database may store

information that is more complicated than a simple list


The data Approach : Foundational Concepts

DBMS – Database Management System

Use a DBMS software to create, store, organize and retrieve data

from a single database or several database

Example : Microsoft Access


Advantages of the Database Approach

Program-data independence Minimal data redundancy Improved data consistency Improved data sharing Increased productivity of application development Enforcement of standards Improved data quality Improved data accessibility Reduced program maintenance


Effective Management of Databases

The Database administers (DBA)

Work with programmers and analysts to design and implement the database

Work with user and managers to establish database policies

Implement security features and establishes database permissions


A user of a database system will

Use a database application to track things

Use forms to enter, read, delete and query data

Produce reports


A set of one or more computer programs the serves an

intermediary between the users and the DBMS

Application program that read to modify database data by

sending SQL statement to DBMS

Application program to present data to users in the format

of forms and reports


Create and process forms

Process user queries

Create and Process reports

Execute application logic

Control database applications


A computer program used to create, process and administer

the database

DBMS receives request encoded in SQL and translate the

requests into actions on the database

DBMS is a large, complicated program that is licensed

software. Almost majority of the companies never write

their own DBMS program


The database is a collection of related tables and other

structures

A database is a self-describing collection of related records


Create database Create tables Create supporting structures Read database data Modify database data (insert, update, delete) Maintain database structures Enforce rules Control concurrency Provide security Perform backup and recovery


Support several users simultaneously Include more than one application Involve multiple computers Are complex in design Have many tables Have many database

Organizational database systems typically:


Address :

SCO -15, Dayal Bagh,Near Hanuman Mandir

Ambala Cantt-133001Haryana

Ph. No.: 9729666670, 8222066670 &0171-4000670Email ID: [email protected]: www.batracomputercentre.com

Data Base Management ! Batra Computer Centre

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