Data Base System Application - Unit 7

PRESENTATION ON DBMS AND ITS APPLICATIONS

Presented By :

Prof. Amit Chandra

DBMS is the interface between the users (application programmers) and the database (the data). A database is a collection ofdata that represents important objects in a user’s business. A database management system (DBMS) is a program that allows users to define, manipulate, and process the data in a databasein order to produce meaningful Information. DBMS is collection of programs that enables you to store, modify, and extract important information from a database. There are many different types of DBMS, ranging from small systems that run on personal computers to huge systems that run on mainframes.

Contd…• Good data management is an essential

prerequisite to corporate success because: Data InformationInformation KnowledgeKnowledge JudgementJudgement DecisionDecision Success (provided that data is complete, accurate,

timely and easily available)

Contd……

Following are the examples of DBMS · Computerized library systems · Automated teller machines · Flight reservation systems · Computerized parts inventory systemsProduct of DBMS MS –Access ; Oracle –(8,8i,9i,11i,10g) ; Microsoft SQL

Server ; IBM-DB-II ; My SQL (for LINUX OS) ; Postgre SQL

DBMS client server architectureDBMS is the three layer architecture :

User Layer

Application Layer

Data Base Layer

Client 1 Client 2 Client 3

LAN

Data Base Server

Data

Application of DBMSs in various fields

There are many different types of DBMSs, ranging from smallsystems that run on personal computers to huge systems thatrun on mainframes. Database are applied in wide no. ofapplications. Following are some of the examples :-

· Banking: For customer information, accounts, loans & other banking transactions

· Airlines: For reservation & schedule information

· Universities: For student information, course registration,grades etc.

· Credit card transaction: For purchase of credit cards & generation of monthly statements.

Contd….. · Telecommunication: For keeping records of calls

made , generating monthly billetc.

· Finance: For storing information about holdings, sales &

purchase of financial statements· Sales: For customer,product & purchase information

· Manufacturing: For management of supply chain.

· Human Resource: For recording information aboutemployees,salaries,tax,benefits etc.

Advantages of Database System1) No Data Redundancy and Inconsistency2) Easy to Access Data3) Prevents Data Isolation4) Rule Enforcement5) Safety and security6) Shares large volume of data7) Time Saving8) Takes less space as compared with manual

file base management system.

THANK YOU