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Database Management
Systems
Chapter 1
Introduction
• What is a database?
• What is a database management system
(DBMS)?
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http://msdn.microsoft.com/vstudio/express/v
wd/
Database development Challenges
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Conserving space
Retrieving data rapidly
Sharing data
Providing backup and recovery
Application Development
• Feasibility – identify scope, costs, and schedule
• Analysis – gather information from users
• Design – define tables, relationships, forms, reports
• Development – create forms, reports, and help; test
• Implementation – transfer data, install, train, review
Components of DBMS
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Database engine
Data dictionary
Query processor
Report writer
Forms generator
Application generator
Communication and Integration facilities
Security facilities
Advantages of DBMS
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Minimal data redundancy
Data consistency
Integration of data
Sharing of data
Enforcement of standards
Ease of application development
Uniform security, privacy, and integrity
Data independence
Brief History of DBMS
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Hierarchical databases
Network databases
Relational databases
Object-oriented databases
Object Oriented
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• http://java.sun.com/docs/books/tutorial/jav
a/concepts/index.html