Question: Let R (A1, A2, A3, A4) be a relation and F be a set of functional dependencies among attributes {A1, A2, A3, A4} such that:

Let R (A1, A2, A3, A4) be a relation and F be a set of functional dependencies among attributes {A1, A2, A3, A4} such that: 


• {A1, A2, A3, A4}+ = {A1, A2, A3, A4} 

• no proper, nonempty subset of {A1, A2, A3, A4} is equal to its closure with respect to the set F of functional dependencies. 


What is the set F of functional dependencies in R (compatible with the two conditions above) ? Show the full details of your work. 

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!

Q:

Let R (A1, A2, A3, A4) be a relation and F be a set of functional dependencies among attributes {A1, A2, A3, A4} such that: {A1, A2, A3, A4} + = {A1, A2, A3, A4} no proper, nonempty subset of {A1,...

Q:

Using the Auto Data set, which describes a set of vehicles and their prices in the 1970s, use a linear regression model to work through the Business Research Process using the attached outline...

Q:

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...

Q:

Contact local employers and ask for copies of their employee handbooks. If none are available, research parent companies of local employers online to see if their employee handbooks are available....

Q:

Repeat Problem 17.6, only assume that after the stock is excavated, the land has an alternative use and can be sold for $30m. In problem 17.6 The stock price of XYZ is $100. One million shares of XYZ...

Q:

The following data represent total assets, book value, and market value of common shareholders equity (dollar amounts in millions) for Abbott Labs, IBM, and Target Stores. Abbott Labs manufactures...

Q:

=+1. A producer of beverage containers wants to ensure that a liquid at 90C will lose no more than 4C after 30 minutes. Containers are selected at random and subjected to testing. Historical data...

Q:

Using OLAP Query 1 shown in Figure 9.11 (based on data from Figure 9.7) as a starting point, give an example that illustrates a pivot operation.

Q:

4.) During 2022 Fat Cat Construction started a construction job with a contract price of $2,500,000. The job was completed in 2024. The following information is available. 2022 2023 2024 Costs...

Q:

A particular dress manufacturer closes a factory in South Carolina and moves the factory to Malaysia, where labor costs are lower. This is an example of Select one: a. gentrification. b....

Q:

TLUS (a) The truck shown in Figure 3 (a) is traveling at 90 km/h when the driver applies the brakes to come to stop. The deceleration of the truck is constant and the truck comes to a complete stop...

Q:

value; higher heating tion of a stoichiometric propane-air mixture assuming reactants at 298 K, Determine the adiabatic flame temperature for constant-pressure combus no dissociation of the products,...

Q:

Now or Never! specializes in "one day - one deal" selling. Every day they sell a product that isnot available the next day. If the item sells out, all the excess demand is lost and if items are...

Q:

Question: Transfer function of a complex control system is given below. T(s): = 30s + 3s + s s6+3s5+4s + 6s + 5s +3s+2 a) Observe system's stability according to coefficient tests and mention your...

Q:

11. [10] The stochastic exponential of a constant, that is, the process & defined by Et = exp xp (aB - 1/2), t for some constant a, is a martingale. a. Prove the above statement directly, that is, by...

Q:

# Python program to : Write a function to accept only 0 to 6 numbers as argument and return ,0 = Sunday to 6 = Saturday if other than 0 to 6 return invalid.

Q:

Determine whether the lines are parallel, perpendicular, or neither. 2x + 3y = -12, 2y - 3x = 8

Q:

Illustrate how the process of creating first normal form relations may lead to multivalued dependencies. How should the first normalization be done properly so that MVDs are avoided?

Q:

Specify queries a, b, c, and d of Exercise 8.17 in both tuple and domain relational calculus. Exercise 8.17 Consider the AIRLINE relational database schema shown in Figure 5.8, which was described in...

Q:

Discuss the capabilities that should be provided by a DBMS.

Q:

9. Draw a dotplot to describe the data. A discrete variable can take on only the values 0, 1, or 2. Use the set of 20 measurements on this variable to answer the question 1 1 1 12 2121 - 220 2007 1

Q:

8. Does the stem and leaf plot in Exercise 7 improve the presentation of the data? 4.5 4.3 Auth 3.2 3.5 3.9 3.5 4.8 3.6 3.3 4.3 4.2 3.9 3.7 4.3 4.4 3.4 4.4 4.0 3.6 3.5 3.9 tttw 3.9 4.2 4.0

Q:

7. Draw a stem and leaf plot, using each number in theones place twice to form the stems. 4.5 4.3 Auth 3.2 3.5 3.9 3.5 4.8 3.6 3.3 4.3 4.2 3.9 3.7 4.3 4.4 3.4 4.4 4.0 3.6 3.5 3.9 tttw 3.9 4.2 4.0