Question: 2. Consider a relation R(A, B, C, D, E) with the following set of functional dependencies: F = {AB -> D, AC -> E, BC

2. Consider a relation R(A, B, C, D, E) with the following set of functional dependencies: F = {AB -> D, AC -> E, BC -> D, D -> A, E -> B}. Furthermore, R is decomposed into relation S(A, B, C) and other relations. [a] Find all functional dependencies that hold in S. [b] Determine all possible keys for S. [c] Determine whether S is in BCNF and/or 3NF. Explain your answer.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

2. Given the relation R (A, B, C, D, E) and the following set of functional dependencies: F = {ABC, AE, BD, C>B} a. Specify the key of R. b. Is R in the 3NF? If not give a decomposition of R that is...

sql (1) Consider a relational schema R(A, B, C, D, E) and the following set of functional dependencies valid in the schema List all minimal keys valid in the schema. List all derivations of function...

Consider the relation schema R={A, B, C, D, E} and the following set of Functional Dependencies (FDs):AB AB CD BC D DE A a. What are the (candidate) keys of R? Justify your answer (i.e., show the...

Hi, This is a relational database question. Struggling with this homework question, when I have more than one determinant attribute on the right hand side. Could you please explain your working with...

Solve the following normalization questions. Solve the following normalization questions. 1. Consider the relation R(A, B, C, D, E, F, G, H, I, J) and functional dependencies {A} ? {D,E) What is the...

Consider an relation of R(A, B, C, D, E, F), with a set of functional dependencies F= E D, CB, CEF, BA, please answer the following questions: 1. Find all candidate keys (i.e., minimal keys) of...

3 . ( 4 0 points ) Consider a relation schema R 3 ( A , B , C , D , E ) that satisfies the set of functional dependencies F 3 = { A BC , AC BD } . 1 ) ( 5 points ) Calculate ( AC ) + and ( AE ) + 2 )...

Consider a relation schema R(A, B, C, D, E, G) and a set of functional dependencies F = {A BCD, BC DE, B D, D A}. Assume that R(A, B, C, D, E, G) is decomposed into R1(A, B, C, E, G) and R2(D, G)....

Let s suppose, a relation R = ( A , B , C , D , E , F ) with a set of functional dependencies F: ( A - > B , BC - > D , EF - > A , F - > E ) is given. Relation R is decomposed into R 1 ( A , B , C ,...

2 Marks Question 2 Consider the relation schema R A B C D E and the following set of Functional Dependencies (FDs): AB CD 2.1 What are the (candidate) keys of R? Justify your answer (i.e., show the...

CBS televised a recent Super Bowl football game between the New Orleans Saints and the Indianapolis Colts. That game received a rating of 45, indicating that among all U.S. households, 45% were tuned...

The scores for two within-term examinations, X1 and X2; the current grade point average (GPA), X3; and the final exam score, Y, for 20 students in a business statistics class are listed in Table...

3.9 The proportion of people who respond to a certain mail-order solicitation is a continuous random variable X that has the density function f(x) = 2(x+2) 5 , 0

CT Corp Comprehensive Question Canadian Tire Corporation, Limited ( Canadian Tire ) is a family of companies that includes a retail segment and a financial services division, among others. The retail...

Discuss the ways companies attempt to select, train, compensate, and reintegrate expatriate managers. page 646

List the different categories of international employees. page 642

Explain the legal environments impact on labor relations. page 590