Concepts of Database Management
Concepts of Database Management
8th Edition
ISBN: 9781285427102
Author: Philip J. Pratt, Mary Z. Last
Publisher: Cengage Learning
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Chapter 6, Problem 6RQ
To determine

(a)

Way to implement relationship between employee and project for the following situation.

More than one employee can work on a single project, but each employee can work on a single project.

To determine

(b)

Way to implement relationship between employee and project for the following situation.

An employee can work on multiple projects, but each project should have unique employee assigned to it

To determine

(c)

Way to implement relationship between employee and project for the following situation.

An employee can work on multiple projects and a project can be worked on by many employees.

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Tasks python • Task 1: Add a new class 'Moon' that inherits from `CelestialBody` and has an additional attribute `parent_planet'. Write a method to display the moon's details along with its parent planet. • Task 2: Modify the 'Galaxy` class to calculate the total mass of all celestial bodies it contains. Implement a method `total_mass()` for this purpose. • Task 3: Create a class `BlackHole` that inherits from `Celestial Body` and adds properties like event_horizon_radius` and `spins`. Implement a method to display black hole details. • Task 4: Develop a simulation where a user can create multiple galaxies and display their celestial bodies in a hierarchical format using inheritance.
Please help me to draw the Entity Relationship Diagram based on context and data flow diagram. Please draw using the info in this 2 images attached
Question 1 [CO3]: Construct a relational schema diagram from the Extended Entity Relationship (EER) diagram below. Salary Shift Model Capacity Weight N WORKS ON EMPLOYEE N PLANE TYPE MAINTAIN Ssn PERSON Restr Lic_num M Name M Phone FLIES PILOT Address OF_TYPE N Reg AIRPLANE Date Workcode Date/workcode SERVICE Hours PLANE SERVICE N Pdate STORED IN OWNS OWNER M N ld Address Name HANGAR Number Location Capacity Don't use any Al tool show ur answer in pe n and paper then take
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