Question: Consider the schema R = ( A , B , C , D , E , G , HI , I, J , K )

Consider the schema
R =(A, B, C, D, E, G, HI, I, J, K)
and the set F of functional dependencies:
DE \ GHI
IJAACD
EG -+ AJK
A - K
C- K
J- EI
List the three candidate keys, and for each candidate key, show why it is a candidate key.

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:

Consider the schema R = (A, B, C, D, E) and let the following set F of functional dependencies holdforR: F = {A -> BC, CD -> E,C -> A, B -> D} Q: Suppose that the schema R = (A, B, C, D, E) is...

Q:

1. Consider relation schema R = (A, B, C, D, E) and the following functional dependencies on. A BC CD E B- D E- A (a) List all candidate keys for FR. (b) Suppose that we decompose schema R into...

Q:

Will rate! Problem 1.[100 points total. Each has 20 points.] Consider the schema R (A, B, C, D, E, F) and the following set F of functional dependencies holds on R A BCD BC DE DA a. Compute A+ b....

Q:

Problem 1.[100 points total. Each has 20 points.] Consider the schema R (A, B, C, D, E, F) and the following set F of functional dependencies holds on R: A BCD BC DE B D DA a. Compute A+ b. Prove...

Q:

Consider the schema R - (A, B, C, D, E) and let the following set F of functional dependencies hold for R: F-\A-> BC, CD E,C A, B- D Problem 4 Give a lossless, dependency-preserving decomposition...

Q:

Consider the schema R- (A, B, C, D, E and let the following set F of functional dependencies hold for R: F-A-)BC. CD-)E, C A, B D } Problem 2 What are the candidate keys of R = (A, B, C, D, E)?...

Q:

Consider the schema R = ( A, B, C, D, E ) and let the following set F of functional dependencies holdfor R : F = {A -> BC, CD -> E, C -> A, B -> D,} 1) Prove or disprove AD E is in the closure of F....

Q:

7. [5 points] Consider a schema R (A, B, C, D, E, F) with a set of functional dependencies {A>BC, CD+E,B>D, EA) on R. If R is decomposed into R (A, B, C, F) and R2(A, D, E), is the decomposition...

Q:

Problem 1.[100 points total. Each has 20 points.] Consider the schema R (A, B, C, D, E, F) and the following set F of functional dependencies holds on R: ABCD BC DE BD D-A Compute A*. Prove that the...

Q:

Consider the schema R = ( A , B , C , D , E , G ) and the set F of functional depen - dencies: A - > BC BD - > E CD - > AB a . Find a nontrivial functional dependency containing no extraneous at -...

Q:

It has been my experience that institutional investors will accept lower returns for lower volatility. The average investor tends to want higher returns than what institutional investors are willing...

Q:

On January 1, 2021, Parent, Inc. acquired 100 percent of Subsidiary Company's common shares by exchanging 47,500 shares of its $1 par value common stock with a market value of $60 per share on the...

Q:

1 . Describe privilege escalation. [ 2 . 5 ] 2 . Describe the primary difference between discretionary and nondiscretionary access control models. [ 2 . 5 ]

Q:

Computation of Inputs Allowed, Direct Materials and Direct Labor During the year, Dorner Company produced 279,000 lathe components for industrial metal working machinery. Dorner's direct materials...

Q:

5. Why do you think system performance in terms of waiting time changed as it did? Why did customer behavior changed as it did?

Q:

3. How effective is the memo in Exhibit 4 in clarifying the distinction between sell and non-sell time?

Q:

4. How would you redesign compensation and performance appraisal systems at R&R? Is the sales-per-hour system an effective measure of customer satisfaction? Are R&Rs HR policies and practices fully...