QUESTION 6In which of the following can one entity instance of one type be related to many entity instances of anothertype?O A. One to Many relationshipO B. Many to Many relationshipOC. One to one relationshipO D. Zero to Many relationship QUESTION 7Which of the following is True regarding Associative entity ?O A. All of the givenO B. Primary key is a composite attributeO C. Used to resolve complexity in many to many relationshipO D. Called bridge entity

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Answered: a which of the following can one entity…

a which of the following can one entity insta "pe? DA. One to Many relationship O B. Many to Many relationship DC. One to One relationship

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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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.

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