Chapter 1: Introduction

• nPurpose of Database Systems
• nView of Data
• nDatabase Languages
• nRelational Databases
• nDatabase Design
• nObject-based and semistructured databases
• nData Storage and Querying
• nTransaction Management
• nDatabase Architecture
• nDatabase Users and Administrators
• nOverall Structure
• nHistory of Database Systems

Database Management System (DBMS)

• nDBMS contains information about a particular enterprise

• l

1. Collection of interrelated data
2. lSet of programs to access the data
3. lAn environment that is both convenient and efficient to use

• Database Applications:

lBanking: all transactions

lAirlines: reservations, schedules

lUniversities: registration, grades

lSales: customers, products, purchases

lOnline retailers: order tracking, customized recommendations

lManufacturing: production, inventory, orders, supply chain

lHuman resources: employee records, salaries, tax deductions

nDatabases touch all aspects of our lives