Based on Entity Relationship Diagram (ERD) below;a) Write the correct business rules for all entities.b) Write the suitable relationship name for (a) and (b).RESERVATIONGUESTROOMPK RSV_IDPK GUEST_IDRSV_DATEPK ROOM_IDGUEST_NAMEARRIVAL_DATE(b)ROOM_TYPEGUEST_PHONENO(a)DEPART_DATEROOM_RATEGUEST_ADDRESSNO_OF_GUESTSFK1 RSV_IDNO_OF_ROOMSFK1 GUEST_ID

The given problem is related to database entity relationship diagram where the solution will include…

Answered: Based on Entity Relationship Diagram…

Based on Entity Relationship Diagram (ERD) below; a) Write the correct business rules for all entities. b) Write the suitable relationship name for (a) and (b).

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

Based on Entity Relationship Diagram (ERD) below;
a) Write the correct business rules for all entities.
b) Write the suitable relationship name for (a) and (b).
RESERVATION
GUEST
ROOM
PK RSV_ID
PK GUEST_ID
RSV_DATE
PK ROOM_ID
GUEST_NAME
ARRIVAL_DATE
(b)
ROOM_TYPE
GUEST_PHONENO
(a)
DEPART_DATE
ROOM_RATE
GUEST_ADDRESS
NO_OF_GUESTS
FK1 RSV_ID
NO_OF_ROOMS
FK1 GUEST_ID

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