Top Posters
Since Sunday
r
4
L
4
3
d
3
M
3
l
3
V
3
s
3
d
3
a
3
g
3
j
3
Home Q & A Board Other Fields Homework Help Business
New Topic  
boyob89 boyob89
wrote...
Go to Answer
Posts: 4396
Rep: 36 0
8 years ago
For a unary M:N relationship:
A) the entity type and the M:N relationship are modeled as one relation; a composite key is used
B) the entity type is modeled as one relation; using as its primary key a composite key, a separate relation is created to represent the M:N relationship
C) separate relations for the class and for each subclass are created; primary and foreign keys are established for each class
D) the primary key of the entity on the one side of the relationship serves as a foreign key in the relation on the many side of the relationship
Textbook 
Modern Systems Analysis and Design

Modern Systems Analysis and Design


Edition: 4th
Authors:
Read 155 times
3 Replies
Majoring in Economics, minoring in business
Replies
Answer verified by a subject expert
MartyJayMartyJay
wrote...
#1
Top Poster
Posts: 4390
Rep: 31 0
8 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

boyob89 Author
wrote...
#2
8 years ago
i didn't expect someone to answer, this website is awesome
Majoring in Economics, minoring in business
wrote...
#3
8 years ago
Glad I could help
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1733 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 4492
  
 218
  
 404
Your Opinion
What's your favorite math subject?
Votes: 559
Previous poll results: Does a gender wage gap exist in America?