IT CS1011 Unit 5 Milestone- RETAKE WGU 2023

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Te
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https://postgres.sophia.org/


What is wrong with the following ERD meant to show a
relationship between two entities?



Employee § Dept




There is nothing wrong with the
O ERD.



Both of the objects are attributes.




There is no relationship between
O the entities.

, One of the items is set up as an
o (o] attribute.




RATIONALE
Rectangles are used to indicate the entities. Attributes have ovals
to distinguish them. To show a relationship between entities and
attributes, a line is drawn between them.


CONCEPT
— Tables as Entities

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2 @
Review the sample movie ratings ERD after 3NF.

, User ZipCode

| PK Userld

UserFirstName

UserLastName

Phone

Email MovieGenre

Address Movield

UserName Genreld

Password
Genre
Zip
$x Genreld

GenreName


ex Ratingld

| CE RoleType


$c Movield
K
RoleTypeld
NumericRating RoleTypeName


TextualRating


ReviewDate



Movield

RoleTypeld po——


Personld po—

18 Movield
RoleName

MovieTitle


ReleaseDate

| 8 Personld
Length

PersonFirstName
Description

PersonLastName
AverageRating




What is the relationship between tables Movie and Genre?




M:N