DATABASE SYSTEMS
13th Edition
ISBN: 9780357095607
Author: Coronel
Publisher: CENGAGE L
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Chapter 5, Problem 10C
Explanation of Solution
Crow’s Foot ER diagram for Global Unified Technology Sales (GUTS):
The following data model shows the solution for the given question.
Explanation:
- In the above data model, one department can contain many employees. The primary key of “Department” entity is “Dept_No” and “Employee” entity contains “Emp_No” as primary key.
- One employee uses more than one enabled services. so, the primary key and foreign key of this “Enabled” entity is “Service_No” and “Emp_No”.
- The “Service” entity is used by the “Enabled” entity. The primary key of the “Service” entity is “Service_No” and foreign key is “Server_No”...
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Analyze the charts and introduce each charts by describing each. Identify the patterns in the given data. And determine how are the data points are related.
Refer to the raw data (table):
Chapter 5 Solutions
DATABASE SYSTEMS
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 a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 17RQCh. 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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