Introduction to Database and Database Management

Ricky Bulalakaw

Overview

• What is a database• What is/are the uses of a database• How should we design databases?• What are the available tools and techniques in

processing data?

What is a database?

• Data - facts that could be recorded and stored on computer media; consists of facts, text, graphics, images, sound and video segments that have meaning in the users' environment

• Information - data that has been processed in such a way that it can increase the knowledge of the person who uses it

DATABASE

• Organized collection of logically related data, usually designed to meet the information needs of multiple users in an organization. Contains occurrences of data

What is NOT a database?

• Multiple spreadsheet files of different topics in one USB drive

• Summary table of reports of agencies / offices• Any collection of data that is not organized,

related and “cleaned”

Database and Information System

• Most information systems are database-driven• Database allows more responsive, context-

aware and user-based features of an information system

• Information systems are limited by the information / data entered into it (GIGO)

Terminologies

• Spreadsheet• Table• Database Management

System (DBMS)• Relational DBMS

• Entity-Relationship Diagram• Entity• Attribute• Relationship• Associative Entity

Available Tools for Data Processing

• Pivot Table• Google / Input Forms • VLOOKUP / HLOOKUP• Google Fusion Tables