1. Please draw and submit an ERD that satisfies the following description 3 entities: a. Apartment building: (id, address, name) b. Apartment (apartment number, number_of_bedrooms, number_of_bathrooms) [weak entity] c. Tenant (person_name) 2 relationships a. Contained_in: Identifying relationship between apartment and apartment building. Each apartment building must have at least one apartment and can have many. Each apartment must be in one and only apartment building b. Leased: relationship between tenant and apartment. Has the following attribute; Date_rented. Each apartment can be rented by many tenants. Each tenant can have many apartments. Make sure you do the minimum cardinalities too (make them reasonable and explain them to me in text).
1. Please draw and submit an ERD that satisfies the following description 3 entities: a. Apartment building: (id, address, name) b. Apartment (apartment number, number_of_bedrooms, number_of_bathrooms) [weak entity] c. Tenant (person_name) 2 relationships a. Contained_in: Identifying relationship between apartment and apartment building. Each apartment building must have at least one apartment and can have many. Each apartment must be in one and only apartment building b. Leased: relationship between tenant and apartment. Has the following attribute; Date_rented. Each apartment can be rented by many tenants. Each tenant can have many apartments. Make sure you do the minimum cardinalities too (make them reasonable and explain them to me in text).
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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So Ill do the best I can to explain my question. I have a HW assignment and basically need to create a "crows foot erd" using the provided instructions my teacher gave. I need help putting the finishing touches on my erd. In the 1st screenshot, youll see my current erd and in the 2nd, youll see the instructions. Can someone help me finish my diagram?
(I need help putting in the right data types AND putting in the correct cardinality symbols on my relationship lines)
Transcribed Image Text:2
Address
Apartmemt_Building
ID
Address
Name
Name
SEP
TRICKENB
Int
Int
String
[
Apartment_Number
PAGES
Number_Of_Bathrooms (Number_Of_Bedrooms)
Apartment
Apartment_Number
Number_of_
Bathrooms
Number_of_
Bedrooms
KEYNOTE
Int
Int
Int
Tenant
Person_Name
|
String
2
E
(A)
ㅏ
![OFF
+ V
4
T
Q
Use the Zoom tool Q to fine tune
the details in your image.
1. Please draw and submit an ERD that satisfies the following description
3 entities:
a. Apartment_building: (id, address, name)
b. Apartment (apartment number, number_of_bedrooms, number_of_bathrooms)
[weak entity]
Tenant (person_name)
2 relationships
Contained_in: Identifying relationship between apartment and apartment_building.
Each apartment building must have at least one apartment and can have many.
Each apartment must be in one and only apartment building
b. Leased: relationship between tenant and apartment. Has the following attribute;
Date_rented. Each apartment can be rented by many tenants. Each tenant can
have many apartments. Make sure you do the minimum cardinalities too (make
them reasonable and explain them to me in text).
+
×](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7daa69d8-205a-4b72-abf5-96966d755823%2Fcd9f64e2-d083-472b-b5e8-17dbc854a34e%2Flljymvj_processed.png&w=3840&q=75)
Transcribed Image Text:OFF
+ V
4
T
Q
Use the Zoom tool Q to fine tune
the details in your image.
1. Please draw and submit an ERD that satisfies the following description
3 entities:
a. Apartment_building: (id, address, name)
b. Apartment (apartment number, number_of_bedrooms, number_of_bathrooms)
[weak entity]
Tenant (person_name)
2 relationships
Contained_in: Identifying relationship between apartment and apartment_building.
Each apartment building must have at least one apartment and can have many.
Each apartment must be in one and only apartment building
b. Leased: relationship between tenant and apartment. Has the following attribute;
Date_rented. Each apartment can be rented by many tenants. Each tenant can
have many apartments. Make sure you do the minimum cardinalities too (make
them reasonable and explain them to me in text).
+
×
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