prove that a relation which is 4nf must be, Database Management System

+44 141 628 6080
[email protected]

prove that a relation which is 4nf must be

Prove that a relation which is 4NF must be BCNF.

Ans Let R be in 4NF. Suppose it is not in BCNF. Hence, there exists an FD X→Y in R such that x is not a super key. Although by the rule M1 X→Y|=x→→Y. Once again x here is not a super key. This contradicts the fact that R is in 4NF. Hence, our assumption is false. Each R in 4NF should be in BCNF.

Request for Solution File

Ask an Expert for Answer!!

Database Management System: prove that a relation which is 4nf must be

Reference No:- TGS0275754

Expected delivery within 24 Hours

Have a Question? (oR Write a Review)

Write atleast 100 words!!

Asked Questions

Which are forms of media bias

Question: Which of the following are forms of media bias? (Select all that apply)

What when people get involved in community and social change

When people get involved in community and social change but do not hold official political positions, which of the terms best describes what they are part of

How is it rational for the owner of a factory or plantation

How is it rational for the owner of a factory or plantation to work his laborers to death or disability when they can easily be replaced cheaply?

Compare critical feminist theory and power-control theory

Compose a paper that compares and contrasts critical feminist theory and power-control theory as forms of gendered criminology. Your paper should:

Which of the things happened first

Which of the following things happened first? Group of answer choices Women gained the right to vote Seneca Falls Convention Margaret

How coastlines are vulnerable to multiple climate change

Even though are coastlines are very vulnerable to multiple climate change impacts, the good news is that because most of our urban settlements

Discussion about cultural appropriation

This week watch the 3 short video clips below about cultural appropriation. These videos will redefine terms like cultural appropriation

Request for Solution File

Ask an Expert for Answer!!

Database Management System: prove that a relation which is 4nf must be

Reference No:- TGS0275754

Have a Question? (oR Write a Review)

Recent Questions Asked Database Management System

Q : explain recovery process after system failure

Q : q a firms total cost function is given by tc 2q2

Q : why is maintenance of a software important the

Q : describe prematurity in coronaw artery disease

Q : prove that a relation which is 4nf must be

Q : q a firm uses capital and labor to produce a

Q : a firm uses capital and labor to produce a single

Q : q let a firms production function be given by k03

Q : a firm operates two plants with the marginal cost