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3902Ch1 - Databases and Database Users Outline...

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Databases and Database Users Sept. 2009 Yangjun Chen ACS-3902 1 Outline: Introduction (Chapter 1 - 3rd, 4th, 5th ed.) What is a database? The main characters of a database system The basic database design method The entity-relationship data model for application modeling
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Databases and Database Users Sept. 2009 Yangjun Chen ACS-3902 2 Types of databases traditional multimedia - pictures, video, sound Scientific database - GIS: maps, weather, satellite images - biological database: DNA sequence analysis warehouse , OLAP - analysis, decision making real-time , active databases - industrial processes deductive databases - combination of inference and databases
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Databases and Database Users Sept. 2009 Yangjun Chen ACS-3902 3 Types of databases traditional multimedia - pictures, video, sound GIS - maps, weather, satellite images data warehouse, OLAP - analysis, decision making real-time, active databases - industrial processes deductive databases - combination of inference and databases Our focus, but we will examine deductive databases to some degree Read Chapter 1 For next day, read Chapters 2 and 3
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Databases and Database Users Sept. 2009 Yangjun Chen ACS-3902 4 Database collection of related data represents some aspect of the real world logically coherent collection built with a specific purpose in mind could be anywhere - notebook, spreadsheet, Access, Oracle, … could be manual / could be computerized Data known and recordable facts name, phone number, address, grade, ...
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Databases and Database Users Sept. 2009 Yangjun Chen ACS-3902 5 Database Management System (DBMS) collection of software facilitating the definition, construction and manipulation of databases Definition record structure data elements names data types constraints etc Construction create database files populate the database with records Manipulation querying updating
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