The Gateway to Computer Science Excellence
First time here? Checkout the FAQ!
x
0 votes
341 views
Participation Constraints can not be represented for

a. Unary relationships

b. Binary relationships

c. Ternary relationships

d. None
asked in Databases by Active (4.7k points)
retagged by | 341 views
0
a) unary relationship.
0
@ntitsh
Would you please explain?

2 Answers

0 votes
i think , answer  should be option d)none
answered by Active (3.2k points)
0
Would you please explain?
0

participation constraint are of two type : 1) total 2)partial , there is no relationship between type of relationship and participation types . it depends upon cardinality :

1. Minimum Cardinality = 0, for partial participation and equal to 1 for 
   total participation.

2. Minimum Cardinality give partial or total participation.
0 votes
for unary relationship we do not have to represent participation constraints
answered by Active (3.5k points)

Related questions

0 votes
0 answers
5
0 votes
0 answers
6
Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true
49,540 questions
54,099 answers
187,269 comments
71,006 users