Question: How does one implement overlapping subtypes in a ER diagram? a . Use a single subtype discriminator in the supertype entity b . Use a

How does one implement overlapping subtypes in a ER diagram?
a. Use a single subtype discriminator in the supertype entity
b. Use a separate discriminator attribute for each subtype in the supertype entity
c. Use a special color on the diagram
d. Use a circle with an 'o' in it between the supertype and subtype

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

Main Concepts: Enhanced Entity Relationship Diagrams ( EERD ) : ii . Completeness Constraint: Total Specialization Rule ( An instance of the supertype must also belong to either of the subtypes; Use...

Q:

Main Concepts: Enhanced Entity Relationship Diagrams ( EERD ) 1 . S u p e r t y p e s 2 . S u b t y p e s 3 . G e n e r a l i z a t i o n 4 . S p e c i a l i z a t i o n ii . Completeness Constraint...

Q:

Create an EER diagram using MySQL Workbench (Crow's Foot Notation) to support the described business scenario and its operations. After, translate the diagram into a DB schema consisting of tables...

Q:

Part 2 Creating your own EERD. Exercise 1: To strengthen our modeling skills, we will now explore step by step a single problem: A non-profit organization depends on several different types of...

Q:

Create an EER diagram using MySQL Workbench (Crow's Foot Notation) to support the described business scenario and its operations. After, translate the diagram into a DB schema consisting of tables...

Q:

Use entity - relation diagrams in the design of a database. Purpose: This Assignment will allow you to demonstrate practical knowledge of supertype / subtype concepts and will require you to create...

Q:

needed a bit of help on the ones I got wrong or why I got them wrong I wasnt given an ER diagram to do this. this was all the information I received. Question 1 0/2 points In order to be used as a...

Q:

Please use draw.io to do this question. Il you uboutUIE SUDITIIL YUui sigiCHIL, TIANC SUICU ILICIUUE VULL MCS. 1. (19.5 points) For each of the descriptions below, develop an ER diagram using...

Q:

Please come up with database report based on Aged care facility Management.Students are expected to develop and provide their own case study and then interpret that to create an ER Model of the...

Q:

Make an Erd diagram on the scenario University Course Registration System. And you can see this below phots and do changes i that. But make sure Your ER Diagram must include at least FIVE entities....

Q:

In the case student from the book Davenport & Kim on Metabical case study from pages 77-88. Can you let me know if the case study align the problem, models, an data an why with giving insights?

Q:

Two cylindrical pressure vessels made of the same unidirectional lamina but with different fiber orientations were loaded as shown in Fig. P4.43 gave the following strain readings. Cylinder A...

Q:

4 ) Now consider the swap curve given below and calculate the corresponding discount factors for each period.

Q:

Your manager has tasked you with proposing a talent management plan for pilots at Southwest Airlines. Your proposal will be considered by the Director of HR to make a formal plan.

Q:

Understanding Group Leadership Culture and Group Leadership

Q:

Have you ever misunderstood another member of a group you were involved in because of cultural differences? If so, how did you and the other person deal with the misunderstanding?

Q:

4. The telephone game, passing a message from person to person, is fun simply because of the inevitable message distortion that gets revealed at the end. Can you think of a time when a message was...