Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > In an ER model, suppose relation R is a 1 : M...
Start Learning for Free
In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.
Which of the following option is/are true?
- a)Every entity in Y is associated with at least one entity in X.
- b)The maximum participation of Y in the relationship is M.
- c)Every entity in X is associated with exactly one entity in Y.Correct Answer
- d)The minimum participation of X in the relationship is 0.
Correct answer is option 'C,D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
In an ER model, suppose relation R is a 1 : M relationship from entity...
Given,
In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X.
For X,
Minimum participation = 1
Maximum participation = 1
So, every entity in X is associated with exactly one entity in Y.
For Y,
Minimum participation = 0
Maximum participation = M
So, the maximum participation of Y in the relationship is M.
As we know,
In question X and Y are sets, the cardinality of a set is instances of an entity.
Instances of X > Instances of Y.
Hence, the correct options are (C) and (D).
Free Test
FREE
| Start Free Test |
Community Answer
In an ER model, suppose relation R is a 1 : M relationship from entity...
Explanation:
Every entity in Y is associated with at least one entity in X:
- Since the relationship R is a 1 : M relationship from Y to X, every entity in Y must be associated with at least one entity in X. This ensures that the relationship is maintained and every entity in Y has a corresponding entity in X.
The maximum participation of Y in the relationship is M:
- In a 1 : M relationship, the maximum participation of Y is M, meaning that each entity in Y can be associated with multiple entities in X. This allows for a flexible relationship where Y can have multiple connections to X.
Every entity in X is associated with exactly one entity in Y:
- Given that the cardinality of X is greater than the cardinality of Y, every entity in X is associated with exactly one entity in Y. This ensures that each entity in X has a unique connection to an entity in Y, maintaining the integrity of the relationship.
The minimum participation of X in the relationship is 0:
- Since X has participated totally in the relationship R, the minimum participation of X is 0. This means that there may be entities in X that are not connected to any entity in Y, allowing for optional participation of X in the relationship.
Therefore, options 'C' and 'D' are true based on the given scenario in the ER model.
Every entity in Y is associated with at least one entity in X:
- Since the relationship R is a 1 : M relationship from Y to X, every entity in Y must be associated with at least one entity in X. This ensures that the relationship is maintained and every entity in Y has a corresponding entity in X.
The maximum participation of Y in the relationship is M:
- In a 1 : M relationship, the maximum participation of Y is M, meaning that each entity in Y can be associated with multiple entities in X. This allows for a flexible relationship where Y can have multiple connections to X.
Every entity in X is associated with exactly one entity in Y:
- Given that the cardinality of X is greater than the cardinality of Y, every entity in X is associated with exactly one entity in Y. This ensures that each entity in X has a unique connection to an entity in Y, maintaining the integrity of the relationship.
The minimum participation of X in the relationship is 0:
- Since X has participated totally in the relationship R, the minimum participation of X is 0. This means that there may be entities in X that are not connected to any entity in Y, allowing for optional participation of X in the relationship.
Therefore, options 'C' and 'D' are true based on the given scenario in the ER model.
Attention Computer Science Engineering (CSE) Students!
To make sure you are not studying endlessly, EduRev has designed Computer Science Engineering (CSE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Computer Science Engineering (CSE).
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Similar Computer Science Engineering (CSE) Doubts
Top Courses for Computer Science Engineering (CSE)View all
In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer?
Question Description
In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer?.
In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer?.
Solutions for In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer?, a detailed solution for In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? has been provided alongside types of In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In an ER model, suppose relation R is a 1 : M relationship from entity set Y to entity set X. Assume that X has participated totally and Y has participated partially in R and that the cardinality of X is greater than the cardinality of Y.Which of the following option is/are true?a)Every entity in Y is associated with at least one entity in X.b)The maximum participation of Y in the relationship is M.c)Every entity in X is associated with exactly one entity in Y.Correct Answerd)The minimum participation of X in the relationship is 0.Correct answer is option 'C,D'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup