There are four options for mapping specialization/generalization from an EER to a relational schema. 8A (Relation for both superclass and subclass) 8B ((Relation only for subclass) 8C (1 relation with 1 type attribute) 8D (1 relation with multiple type attributes) For the following EER model, apply all four options to map to a relational schema. If an option is not applicable, then explain why Semester Name Sudmim Depmment Sudent playan Highes ph Criche playa Foebl ylays Jasey_No Highen Run

There are four options for mapping specialization/generalization from an EER to a relational schema. 8A (Relation for both superclass and subclass) 8B ((Relation only for subclass) 8C (1 relation with 1 type attribute) 8D (1 relation with multiple type attributes) For the following EER model, apply all four options to map to a relational schema. If an option is not applicable, then explain why Semester Name Sudmim Depmment Sudent playan Highes ph Criche playa Foebl ylays Jasey_No Highen Run

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

Question

There are four options for mapping specialization/generalization from an EER to a relational schema.
8A (Relation for both superclass and subclass)
8B (Relation only for subclass)
8C (1 relation with 1 type attribute)
8D (1 relation with multiple type attributes)
For the following EER model, apply all four options to map to a relational schema. If an option is not applicable, then explain why
Semester
Name
Sudmim
Depnment
Student plaven
Fighen_poah
Criche playas
Foetbl playas
Jasey_No
Highet_Run

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