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15th Edition Understanding Computers Today and Tomorrow Comprehensive Chapter 14: Databases and Database Management Systems Deborah Morley Charles S. Parker Copyright 2015 Cengage Learning Learning Objectives • Explain what a database is, including common database terminology, and list some of the advantages and disadvantages of using databases. • Discuss some basic concepts and characteristics of data, such as data hierarchy, entity relationships, and data definition. • Describe the importance of data integrity, security, and privacy and how they affect database design. • Identify some basic database classifications and discuss their differences. Understanding Computers: Today and Tomorrow, 15th Edition 2 Learning Objectives 4. List the most common database models and discuss how they are used today. 5. Understand how a relational database is designed, created, used, and maintained. 6. Describe some ways databases are used on the Web. Understanding Computers: Today and Tomorrow, 15th Edition 3 Overview • This chapter covers: – What a database is, the individuals who use them, and how databases evolved – Important database concepts and vocabulary – Database classifications and models – The relational database – How databases are used on the Web Understanding Computers: Today and Tomorrow, 15th Edition 4 What Is a Database? • Database – A collection of related data stored in a manner that enables information to be retrieved as needed ...
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