Question: Database: FD, Functional Dependencies, rules 1. a. Does AB -> F hold for R? Computed closure needs to be shown and the question must be

Database: FD, Functional Dependencies, rules

Database: FD, Functional Dependencies, rules 1. a. Does AB -> F hold

a. Does AB -> F hold for R? Computed closure needs to be shown and the question must be explicitly answered.

b. What are the superkeys for relation T?

c. Does AB -> D hold for relation R? Why or why not?

please help me

Let R(A,B,C,D,E,F) be a relation and let T(K,L,M,N) be another. ABC,BD,EF are FD's which hold for relation R KM,LM,MN are FD's which hold for relation T

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!

Portray in words what transforms you would have to make to your execution to some degree (a) to accomplish this and remark on the benefits and detriments of this thought.You are approached to compose...

A creative engineer suggests structuring the TLB so that not all the bits of the presented address need match to result in a hit. Suggest how this might be achieved, and what might be the costs and...

Prolog You are approached to compose a Prolog program to work with twofold trees. Your code shouldn't depend on any library predicates and you ought to expect that the mediator is running without...

Suppose that R(A, B, C) is a relational schema with functional dependencies F = {A, B C, C B}. (i) Is this schema in 3NF? Explain. [2 marks] (ii) Is this schema in BCNF? Explain. [2 marks] (b)...

CSC4402 Homework 5 Due Tuesday Nov. 13, 2018 . Shown below is a relation instance for the relation R with relation schema RABCDE) Relation instance for (R) A B CD E A BCD E A B C D E A B C DE...

The set of functional dependencies (F) that hold over these attributes has been identified as follows. artist -> members, genre msin -> mln, inst msin, mln ->msin, mfn isrc, title, album, artist -...

nnep This counts as "setting the value", even if the value does not change. If its value was last set to v 6= n less than 30 seconds ago, it leaves its value unchanged and replies false. If a client...

I would like to do my NFP project onUnited States Fund for United Nations Children's Fund Prepare an executive summary paper on the Form 990 to include the following: a. A brief overview of your...

N A S TIO I C VE A N T I IZ O E T N R C A TI O PE G CA E S R NI H R T E O U P OR M 2 F OM E R T P C A L C H A L LEARNING OBJECTIVES After studying this chapter, you will be able to answer several...

This is how we have to do it according to the slides: Question 1 Given is the relational schema R= (A, B, C, D, E) and the set of functional dependencies F = {AB BC, C + A, ABC + D). Is R in BCNF? If...

A merry-go-round makes 24 revolutions in a 3.0min ride. (a) What is its average angular speed in rad/s? (b) What are the tangential speeds of two people 4.0 m and 5.0 m from the center, or axis of...

Solve the previous problem except that the Geneva has eight slots. Previous problem A Geneva with six slots is used to operate the worktable of a dial-indexing machine. The slowest workstation on the...

When an accountant reduces the value of a fixed asset by a certain amount each period to reflect wear and tear on the asset, they are applying the

Machine is purchased on January 1, 2014 for 90,000It is as expected to have a useful life for five years and residual value of 5000 the company closes its book us on December 31 under the door...

A How can hearing people become better listeners when they communicate with deaf people? How can deaf people improve their listening skills in the hearing world?

We know that manners are culturally bound (rude behavior in one culture may be acceptable behavior in another). Taking into account your culture and co-cultures (including age, gender, and so on), do...

A What kinds of activities do you know distract you and affect your ability to listen? Are there any tasks that you feel you can do without affecting your listening?