Consider a schema R, a set F of functional dependencies on R, and two candidate keys (k1, k2) as follows:R=(A,B,C).F = {B → C,AC → B}.ki = AC.%3Dk2 =AB.(b) Is R in 3NF?

Given information: - A schema R, a set of FDs F and the two candidate keys (k1, k2) are shown below:…

Answered: Consider a schema R, a set F of…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Why do we find the event delegation paradigm and its associated components to be so useful when developing GUIs? How would you answer this question, using specific instances that illustrate your point?
Consider a schema R, a set F of functional dependencies on R, and two candidate keys (k1, k2) as follows R= (A,B,C). F = {B →C,AC –→ B}. ki = AC. k2 =AB. (a) Is R in BCNF?
Consider the production S- AB If A is nullable and B is non-nullable, which of the following set relations can be deduced? Check all that apply. Follow(A) C Follow(B) First(B) C First(S) First(A) C Follow(S) Follow(A) S Follow(S) First(A) C First(S) Follow(B) C Follow(A) First(B) C First(A) Follow(S) C First(A) First(S) C First(B) First(A) C First(B) Follow(S) C Follow(A) Follow(A) C First(B) Follow(S) C Follow(B) First(B) C Follow(A) Follow(B) C Follow(S) First(S) C First(A)
Suppose you were asked to define a class MetaDisplay in Java, containing amethod static void printTable(String r); the method takes a relation name r asinput, executes the query “select * from r”, and prints the result out in tabularformat, with the attribute names displayed in the header of the table. What JDBC methods(s) can get you the required information?t?
You could save the names of restaurants together with their x, y locations in a database. Just think about the following questions: The primary concern of the inquiry is to determine whether a dining establishment exists. Optimal approach to indexing: Which is better, a B-tree or an R-tree? Why?
When it comes to Map ADT, what are the primary distinctions between a solution that is based on a tree and an approach that is based on a hash? What are the positives and negatives associated with each option?
Consider this UML diagram and select all correct answers: A * B 1,3,5 с id D If A is deleted, corresponding B objects are also deleted via existence dependency. If B is deleted, corresponding C objects are also deleted via existence dependency. A aggregates 1 or more B, B composes 1, 3, or 5 C objects. C is related to D via a qualification, where the key "id" is used to find a D instance.
For problem sets that are given over purely nominal feature sets, classification methods based on vector spaces are not always the best solution. I'm curious as to how strongly you agree or disagree with this statement. If you were doing ML classification on nominal data, which approach would you use? Provide detailed explanations for your answers to the two questions posed.
What are the key differences between a tree-based solution and a hash-based approach when it comes to Map ADT? What are the advantages and disadvantages of both?

Recommended textbooks for you

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

C How to Program (8th Edition)

Computer Science

ISBN:

9780133976892

Author:

Paul J. Deitel, Harvey Deitel

Publisher:

PEARSON

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781337627900

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Programmable Logic Controllers

Computer Science

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

SEE MORE TEXTBOOKS

Consider a schema R, a set F of functional dependencies on R, and two candidate keys (k1, k2) as follows: R=(A,B,C). F = {B → C,AC → B}. ki = AC. %3D k2 =AB. (b) Is R in 3NF?