Question: (2 points) Consider the following rules for functional dependencies. Are they sound? If the rule is sound, provide a proof using the Armstrong 's rules,

(2 points) Consider the following rules for functional dependencies. Are they

(2 points) Consider the following rules for functional dependencies. Are they sound? If the rule is sound, provide a proof using the Armstrong 's rules, if the rule is not sound, give a counterexample. 1. If a Band ya 2. If a B and y then By S. then as B8, where is Y - B

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!

Tail Recursion 3. (2 points) Consider the integer tree type type tree - Leaf I Node of tree * int * tree The simplest way to calculate the sum of an integer tree is: let rec sum t - match t with Leaf...

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...

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)...

"Fortran, Algol and Lisp invented most programming language concepts 50 years ago; adding the concept of object-orientation suffices to explain all programming languages to date". To what extent is...

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...

Briefly describe ASCII and Unicode and draw attention to any relationship between them. [3 marks] (b) Briefly explain what a Reader is in the context of reading characters from data. [3 marks] A...

s sf Define the terms opaque type and concrete type. [5 marks] The following is a shortened version of one of the definition modules described in the Modula-2 user manual: Provide a suitable...

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...

On January 4, 2011, the Federal Circuit Court of Appeals issued an important decision on the determination of reasonable royalties in patent infringement damages. InUniloc USA, Inc. v. Microsoft...

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...

Let S0 = 500 be the total quantity of barrels of oil contained in the field. (There is no uncertainty in this problem.) A barrel of oil sells at the given unit price of $50 on the market, i.e., p0 =...

Bill and Joe live in Ithaca, New York. At 2 pm, Bill goes to the local Ticketmaster and buys a $30 ticket to a basketball game to be played that night in Syracuse (50 miles north). Joe plans to...

9. Repeat steps 3 to 8 taking extra care to stop adding acid immediately the indicator changes colour. On you first attempt you may have overshot the point where the indicator changes colour. This...

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...

b. How do they influence communication between U.S. Americans and people from other countries?

8. Explain the relationship among identity, stereotyping, and prejudice.

2. Stereotypes in Prime-Time TV. Watch four hours of television during the next week, preferably during evening hours when there are more commercials. Record the number of representatives of...