Computer Science, An Overview Brookshear © 2000 Addison Wesley

Computer Science — An Overview J. Glenn Brookshear

Chapter Nine, Figures 1-5 Database Structures

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.1 (A)A file versus a database organization

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.1 (B)A file versus a database organization

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.2The conceptual layers of a database

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.3A relation containing employee information

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.4A relation containing redundancy

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.5 (A)An employee database consisting of three relations

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.5 (B)An employee database consisting of three relations

Computer Science, An Overview Brookshear © 2000 Addison Wesley

Figure 9.5 (C)An employee database consisting of three relations