tailieunhanh - Lecture Database - Chapter 1: Databases and database users

Chapter 1 "Databases and database users" present contents as: Basic definitions, example of a database, typical DBMS functionality, main characteristics of the database approach, database users, workers behind the scene,. | CHAPTER 1 Databases and Database Users Introduction Traditional database applications The information is stored and accessed is either textual or numeric. New applications Multimedia databases store pictures video . Geographic information systems CIS can store and analyze maps weather data . Data warehouses is used in many companies to extract and analyze information. Real-time active database is used in controlling industrial and manufacturing processes. Basic Definitions Database A collection of related data. Data Known facts that can be recorded and have an implicit meaning. Example - Names telephone numbers addresses . Mini-world Some part of the real world about which data is stored in a database. Example - Student grades and transcripts at a .

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