1. BY: ANN BIJI ABRAHAM MEGHA V. K NEHA FATHIMA

2. DATA BASE MANAGEMENT SYSTEM IS A SOFTWARE TO MANAGE DATA BASE. It basically involves 4 operations: DEFINING THE DATABASE:It involves specifying the data type,structures,constraints of the database. CONSTRUCT DATABASE: It is the process of storing the data. MANIPULATING DATABASE: It includes [a]QUERY and [b]UPDATE. SHARING DATABASE: It allows multiple users to access database simultaneously.

3. PASSENGERS FLIGHT TICKET ENTITIES:

4. DEFINING THE DATABASE: PIDNAMEADDRESSFLIGHT NO. DEPARTUREARRIVALROUTE NO. TICKET NO.TICKET DATEPID

5. CONSTRUCTING DATABASE: FLIGHT FLIGHT NO.DEPARTUR E ARRIVALROUTE NO. 30706:1309:4412 53207:0010:1215 65310:1513:0521 PASSENGERS PIDNAMEADDRESSFLIGHT NO. 152ANASMUMBAI307 252ZAINAMUMBAI307 260FARHANBANGALORE653 TICKET TICKET NO.TICKET DATEPID 1235001/09/2015152 1305205/03/2016252 1562003/12/2015260

6. MANIPULATING DATABASE: Query: LIST THE FLIGHT DETAILS OF PASSENGERS TRAVELLING TO OR FROM MUMBAI. Update: CHANGE THE ROUTE NO. FROM 12 to 14. FLIGHT NO.DEPARTUREARRIVALROUTE NO. 30706:1309:4412 FLIGHT NO.DEPARTUREARRIVALROUTE NO. 30706;1309:4414 SHARING THE DATABASE: DBMS ALLOWS MULTIPLE USERS TO ACCESS DATABASE AT SAME TIME.

7. CHARACTERISTICS OF DATABASE: SELF-DESCRIBING NATURE OF DBMS:It describes the structure of database, data types and constraints. ENTITYATTRIBUTESDATATYPES FLIGHTFLIGHT NO.INTEGER PASSENGERNAMECHARACTER TICKETDATE

8. INSULATION B/W PROGRAM AND DATA: [a]PROGRAM DATA INDEPENDENCE: PIDNAMEADDRESSFLIGHT NO. Ph.No. 152ANASMUMBAI307 9874563210 252ZAINAMUMBAI307 8874562145 260FARHANBANGALORE653 9632145871 PIDNAMEADDRESSFLIGHT NO. 152ANASMUMBAI307 252ZAINAMUMBAI307 260FARHANBANGALORE653

9. [b]PROGRAM OPERATION INDEPENDENCE: DATA ITEM NAMESTART POSITIONLENGTH PASSENGERS130 FLIGHT314 TICKET351 USER APPLICATION PROGRAM CAN OPERATE ON DATA BY INVOKING THOSE OPERATIONS REGARDLESS OF HOW THE OPERATIONS ARE IMPLEMENTED.

10. MULTIPLE VIEW SUPPORT: SHARING THE DATABASE: DBMS ALLOWS MULTIPLE USERS TO ACCESS DATABASE AT SAME TIME. IT INCLUDES CONCURRENCY CONTROL SOFTWARE. TICKET NO.TICKET DATEPID 1235001/09/2015152 1305205/03/2016252 1562003/12/2015260 TICKET NO.TICKET DATE 1235001/09/2015 1305205/03/2016 1562003/12/2015

11. SCHEMA ARCHITECTURE: SCHEMA IS USED TO DESCRIBE STRUCTURE OF DATABASE AND CONSTRAINTS. SCHEMA DIAGRAM. FLIGHT NO. DEARTUREARRIVALROUTE NO. FLIGHT PASSENGER PIDNAMEADDDRESSFLIGHT NO. TICKET TICKET NO.TICKET DATEPID

12. THREE SCHEMA ARCHITECTURE 1>INTERNAL LEVEL INTERNAL LEVEL : It has internal schema which describes the physical storage structure of the database. It uses physical data model and describes the details of data storage and access paths. CONCEPTUAL LEVEL: It has conceptual schema which describes the structure of whole database. Concentrates on describing entities, data types and relationship. EXTERNAL LEVEL: It includes user views. It describes a part of database which a particular user is interested in.