Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
New Topic  
tlc_71111 tlc_71111
wrote...
Posts: 507
5 years ago
Describe the reason why it is acceptable to have null foreign key, but it is unacceptable to have a null primary key. Use the concept of entity integrity rule and referential integrity rule in your answer.
Textbook 
Accounting Information Systems

Accounting Information Systems


Edition: 14th
Authors:
Read 79 times
1 Reply
Do What Makes You Come Alive
Replies
Answer verified by a subject expert
gdchavis1gdchavis1
wrote...
Posts: 410
5 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

tlc_71111 Author
wrote...

5 years ago
This helped my grade so much Perfect
wrote...

Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
wrote...

2 hours ago
Smart ... Thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  961 People Browsing
Related Images
  
 1214
  
 281
  
 350
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 249