Each company operates four departments, and each department belongs to one company. Each department in part (a) employs one or more employees, and each employee works for one department. Each of the employees in part (b) may or may not have one or more dependents and each dependent belongs to one employee. Each employee in part (c) may or may not have an employment history, which includes his employments until the employee joined this enterprise as well as the employment history within the enterprise (after joining). Which of the following statements are true about the ER diagram (assuming it is a good design)? Department will be a weak entity. Employee will be a strong entity. There will be a one-to-many relationship between employee and dependent

Each company operates four departments, and each department belongs to one company. Each department in part (a) employs one or more employees, and each employee works for one department. Each of the employees in part (b) may or may not have one or more dependents and each dependent belongs to one employee. Each employee in part (c) may or may not have an employment history, which includes his employments until the employee joined this enterprise as well as the employment history within the enterprise (after joining). Which of the following statements are true about the ER diagram (assuming it is a good design)? Department will be a weak entity. Employee will be a strong entity. There will be a one-to-many relationship between employee and dependent

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 4RQ

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