Organized Collection of Information Each row in the table is Record

1. Introduction To Database
BY BISHAL GHIMIRE
bishal.ghimire@gmail.com

2. Concept of Database
 Organized Collection of Information
 Telephone Book
 Recipe Book
 Mailing List
 Database
 Set of data related to specific purpose or topic
 Access - Includes tools needed to work with data
 Sorting
 Extracting
 Summarizing

3. Database Terminology
 Table
 A list of related information in columns & rows
 Each row in the table is Record
 Each Column in the table is category or Field
 One Item of data is called a Data Value
 E.g. – your actual phone number in phone book

4. DBMS
 DBMS
 A software package for the creation and maintenance of a
computerized database
 Provides
 Efficient
 Reliable
 Convenient
 Safe
 Multi User
 Massive Storage
 Persistent data

5. DBMS Capabilities
 Basic operations such as addition, delection, and
modification
 Selectively retriving data
 Sorting and indexing of database
 Generate Reports
 Mathematical Calculation using built-in functions

6. System Applications
 Banking
 Airlines
 Universities
 Credit Card Transactions
 Telecommunication
 Finance
 Sale
 Manufacturing
 Human resources

7. Data Independence
 Physical Data independence
 Organizing the file at physical level
 Changing physical storage devices
 Without changing the conceptual view or any external view
 Application remain same even if any change at physical level
 Logical Data independence