Question: Consider a relation R with seven attributes ABCDEF. You are given the following dependencies: a) AB C b) C A c) BC D d) D

Consider a relation R with seven attributes ABCDEF. You are given the following dependencies: a) AB C b) C A c) BC D d) D E e) D F f) BE C g) CF B h) CE F

6. Using Armstrong Axioms prove that the following functional dependencies also hold on relation R.

(i) ACD B

(ii) CF BD

(iii) BD ABCDEF

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.(2 pts) Consider a relation R with six attributes ABCDEF. You are given the following Dependencies: E->A, BD->E, B->C. 1) (1pts) Please list all keys for this relation. 2) (1pts) Is the relation in...

Homework Assignment 3 Each question is worth 25 points. 1. Consider a relation R with five attributes ABCDE. You are given the following dependencies: A B, BC E, and ED A. a. List all keys for R. b....

Consider a relation R with Seven attributes T , U , E , S , D , A , Y . You are given the following dependencies: S E Y T A T D U A D E Y S Its candidate keys are { ( T , D , S ) , ( T , D , Y ) } ....

1 0 . ( 1 4 points ) consider a relation R with five attributes ABCDE. You are given the following dependencies: A B , BC E , and ED A . 1 ) List all keys for R . 2 ) Is R in BCNF ? If not, decompose...

Problem 1. [25 points] Consider a relation R with five attributes ABCDE. You are given the following dependencies: A C, BC > E, and ED A. (a) List all candidate keys for R. (10 points) (b) Is R in...

Exercise 19.2 Consider a relation R with five attributes ABCDE. You are given the following dependencies: A B, BC E, and ED A. 1. List all keys for R. 2. Is R in 3NF? 3. Explain why R is not in BCNF...

Need Explanations for the correct answer(Not just copy and pasted shortcut solutions from the internet) Exercise 19.2 Consider a relation R with five attributes ABCDE. You are given the following...

Consider a relation R with five attributes ABCDE. You are given the following dependencies: A B, BC E, and ED A. 1. List all keys for R. 2. Is R in 3NF? 3. Is R in BCNF? -

Seth Bullock, the owner of Bullock Gold Mining, is evaluating a new gold mine in South Dakota. Dan Dority, the company's geologist, has just finished his analysis of the mine site. He has estimated...

Assume that Dunn & King's letter did not include their assessment that the outcome is "...in this case, is more than remote but less than likely" but instead one of the following statements was...

? _ _ _ _ _ _ _ w a s a c o u r t c a s e t h a t l e d t o c o n s e n t l a w s a n d d i s c l o s u r e s f o r m e d i c a l p r o c e d u r e s . G r o u p of a n s w e r c h o i c e s No m s b...

The time taken for a first order reaction is to reduce the initial concentration by a factor of 1/4 is 20 minutes. The time required for the reduction of initial concentration by a factor of 1/16 and...

After Column and Data Types have been set in the Mining Structure, what is the next step?

What needs to occur after any Structural or Variable setting change in SSAS Mining Structures?

For the highest GS Pay Grade Group (1115) in the Federal Government, what are the chances of Females being included? Do Females have longer service statistics in that Group?