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Chapter 14: Databases and Database Management Systems

Deborah Morley Charles S. Parker 15th Edition Understanding Computers Today and Tomorrow Comprehensive Copyright 2015 Cengage Learning Chapter 14: Databases and Database Management Systems 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.

–The process of describing the properties of data to be included in a database table –During data definition, each field is assigned: •Name (must be unique within the table) •Data type (such as Text, Number, Currency, Date/Time) •Description (optional description of the field) •Properties (field size, format of the field, allowable

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