Question 1 Given the ER diagram above, answer the following questions:Name an entity type that has more than 2 relationships.Name one ket attribute and the entity type it belongs to.Name one one-to-one relationship and the entity types it relates.Name one many-to-many relationship and its entity types.Name one relationship attribute.What is the cardinality of relationship ‘employs’?What is the cardinality of relationship ‘textUsed’?Name one weak entity typeDoes it have a partial key? If yes, name it.Name its identifying entity typeName its identifying relationship Question 1OficedestamedepcodelasNamefisNamefacidrarkDepannentempysCreditsFacutyRaedMajorhasMajorchairsfrstameEvaluationSudentlastNamestudentidINdateingengadeteachesNscheduleClasstextubedoomTexbockstieaheryearsectoncounatodepcodepsherGiven the ER diagram above, answer the following questions:a. Name an entity type that has more than 2 relationships.b. Name one ket attribute and the entity type it belongs to.c. Name one one-to-one relationship and the entity types it relates.d. Name one many-to-many relationship and its entity types.e. Name one relationship attribute.f. What is the cardinality of relationship 'employs'?g. What is the cardinality of relationship 'textUsed'?h. Name one weak entity typei. Does it have a partial key? If yes, name it.ii. Name its identifying entity typeiii.Name its identifying relationship

a)Department is an example of entity having more than one relation. b)Departmentname is a key…

Answered: Given the ER diagram above, answer the…

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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Question 1

Given the ER diagram above, answer the following questions:

Name an entity type that has more than 2 relationships.
Name one ket attribute and the entity type it belongs to.
Name one one-to-one relationship and the entity types it relates.
Name one many-to-many relationship and its entity types.
Name one relationship attribute.
What is the cardinality of relationship ‘employs’?
What is the cardinality of relationship ‘textUsed’?
Name one weak entity type
1. Does it have a partial key? If yes, name it.
2. Name its identifying entity type
3. Name its identifying relationship

Question 1
Ofice
destame
depcode
lasName
fisName
facid
rark
Depannent
empys
Credits
Facuty
Raed
Major
hasMajor
chairs
frstame
Evaluation
Sudent
lastName
studentid
IN
date
ing
en
gade
teaches
N
schedule
Class
textubed
oom
Texbock
stie
aher
year
secton
counato
depcode
psher
Given the ER diagram above, answer the following questions:
a. Name an entity type that has more than 2 relationships.
b. Name one ket attribute and the entity type it belongs to.
c. Name one one-to-one relationship and the entity types it relates.
d. Name one many-to-many relationship and its entity types.
e. Name one relationship attribute.
f. What is the cardinality of relationship 'employs'?
g. What is the cardinality of relationship 'textUsed'?
h. Name one weak entity type
i. Does it have a partial key? If yes, name it.
ii. Name its identifying entity type
iii.
Name its identifying relationship

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