EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
12th Edition
ISBN: 8220101450739
Author: Morris
Publisher: YUZU
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Chapter 5, Problem 8C
Explanation of Solution
Crow’s Foot ER diagram for MARU art school:
The following data model shows the solution for the given question.
Explanation:
- In the above data model, “Student” entity contains “Stud_No” as primary key and details of the student are present in the “Student” entity.
- The “Instructors” is a subtype of “Student” entity. Here same “Stud_No” is the primary and foreign key. The “Student” supertype entity has optional “Instructors” entity.
- The many class is assigned to one instructor so one-to-many relationship is used...
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Chapter 5 Solutions
EBK DATABASE SYSTEMS: DESIGN, IMPLEMENT
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is the difference between partial...Ch. 5 - Prob. 7RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 16RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
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