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Key Questions
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After you have finished this chapter, you should be able to answer the following questions.

8.1  Managing Files: Basic Concepts  What are the data storage hierarchy, the key field, types of files, and some methods of data access and storage?
8.2  Database Management Systems  What are the benefits of database management systems, and what are four types of database access?
8.3  Database Models  What are four types of database models?
8.4  Features of a Database Management System  What are the features of a database management system?
8.5  Databases & the New Economy: E-Commerce, Data Mining, & B2B Systems  How are e-commerce, data mining, and business-to-business systems using databases?
8.6  The Ethics of Using Databases: Concerns About Accuracy & Privacy  What are some ethical concerns about the uses of databases?





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