copyright © 2004 pearson education, inc.. chapter 1 introduction and conceptual modeling

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Copyright © 2004 Pearson Education, Inc.

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Page 1: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Copyright © 2004 Pearson Education, Inc.

Page 2: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Copyright © 2004 Pearson Education, Inc.

Chapter 1

Introduction and Conceptual Modeling

Page 3: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-3Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.1A simplified database system environment.

Page 4: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-4Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.2aA database that stores student and course information.

Page 5: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-5Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.2bA database that stores student and course information.

Page 6: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-6Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.2cA database that stores student and course information.

Page 7: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-7Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.3Internal storage format for a STUDENT record.

Page 8: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-8Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.4Two views derived from the database in Figure 1.2 (a) The STUDENT TRANSCRIPT view. (b) The COURSE PREREQUISITES view.

Page 9: Copyright © 2004 Pearson Education, Inc.. Chapter 1 Introduction and Conceptual Modeling

Slide 1-9Elmasri and Navathe, Fundamentals of Database Systems, Fourth Edition

Copyright © 2004 Pearson Education, Inc.

FIGURE 1.5Redundant storage of StudentName and CourseNumber in GRADE_REPORT. (a) Consistent data. (b) Inconsistent record.