Modern Database Management
13th Edition
ISBN: 9780134792293
Author: Hoffer
Publisher: PEARSON
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Question
Chapter 4, Problem 4.37PAE
Program Plan Intro
(a)
To draw:
A relational schema and functional dependencies of the given relation.
Program Plan Intro
(b)
To identify:
The normal form of the relation.
Program Plan Intro
(c)
To decompose: given relation into 3NF relations.
Program Plan Intro
(d)
To draw:
A relational schema for 3NF relations and show referential integrity.
Program Plan Intro
(e)
To draw:
The 3NF relations using Microsoft Visio notation.
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Students have asked these similar questions
What is the most common method of specifying a primary key in a relational schema description?
Group of choice:
A. by enclosing the key attributes in parentheses
B. by stating the key attributes first in the relation definition
C. by writing key attributes in all capital letters
D. by italicizing the key attributes
E. by underlining the attributes that comprise the primary key
1. The BOOK CHECKOUT relation stores data about books checked out by students at a university. The functional dependencies are
given below for this relation.
a. Which normal form is this relation in and why?
b. Using the normalization steps develop a set of 3NF relations for this view. Describe the relational schema for the 3NF relations that
you developed. Be sure to list the referential integrity constraints
BOOK CHECKOUT (StudentID, StudentName, StudentPhoneNumer, ISBN, BookTitie, CheckOutDate, ReturnDate)
StudentID > StudentName, StudentPhoneNumer
ISBN -> BookTitle
StudentiD, ISBN ->CheckOutDate, ReturnDate
For developing our queries, we will be using the following relational schema:
Student(SID, name, username, major)
Course(cname, description, department, weight)
Offering(OID, cname, year, term, duration)
Enrolled(SID, OID, grade)
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offering relation is the specific instance of a course being taught in a given term, and is the
entity which will be associated with the student enrollment. Students are enrolled in these
offerings and achieve a mark.
Express each of following queries in Relational Algebra:
| Write a relational algebra query which will list the cname and description of all
the courses which are being offering in the Fall 2018 term.
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Chapter 4 Solutions
Modern Database Management
Ch. 4 - Define each of the following terms: determinant...Ch. 4 - Prob. 4.2RQCh. 4 - Prob. 4.3RQCh. 4 - Describe the primary differences between the...Ch. 4 - Summarize six important properties of relations.Ch. 4 - Describe two properties that each candidate key...Ch. 4 - Describe the three types of anomalies that can...Ch. 4 - Demonstrate each of the anomaly types with an...Ch. 4 - Fill in the blanks in each of the following...Ch. 4 - What is a well-structured relation? Why are...
Ch. 4 - Prob. 4.11RQCh. 4 - Describe how the following components of an E-R...Ch. 4 - Prob. 4.13RQCh. 4 - Prob. 4.14RQCh. 4 - Briefly describe four typical problems that often...Ch. 4 - Prob. 4.16RQCh. 4 - Explain how each of the following types of...Ch. 4 - Prob. 4.18RQCh. 4 - Prob. 4.19RQCh. 4 - Prob. 4.20RQCh. 4 - Prob. 4.21RQCh. 4 - What is the relationship between the primary key...Ch. 4 - Prob. 4.23RQCh. 4 - Explain what can be done with primary keys to...Ch. 4 - Prob. 4.25RQCh. 4 - Explain three conditions that suggest a surrogate...Ch. 4 - Prob. 4.27RQCh. 4 - For each of the following E-R diagrams from...Ch. 4 - Prob. 4.29PAECh. 4 - Prob. 4.30PAECh. 4 - For your answers to the following Problems and...Ch. 4 - Figure 4-3212 shows a class list for Millennium...Ch. 4 - Prob. 4.33PAECh. 4 - Prob. 4.34PAECh. 4 - Prob. 4.35PAECh. 4 - Prob. 4.36PAECh. 4 - Prob. 4.37PAECh. 4 - Prob. 4.38PAECh. 4 - Prob. 4.39PAECh. 4 - Transform Figure 2-15a, attribute version, to 3NF...Ch. 4 - The Public Safety office at Millennium College...Ch. 4 - Prob. 4.42PAECh. 4 - Prob. 4.43PAECh. 4 - Prob. 4.44PAECh. 4 - For your answers to Problem and Exercise 3-33 from...Ch. 4 - Prob. 4.46PAECh. 4 - Prob. 4.47PAECh. 4 - Figure 4-38 includes an EER diagram for a...Ch. 4 - Prob. 4.49PAECh. 4 - Prob. 4.50PAECh. 4 - Prob. 4.51PAECh. 4 - Prob. 4.52PAECh. 4 - Figure 4-40 shows an EER diagram for a university...Ch. 4 - Explore the data included in Table 4-9. Assume...Ch. 4 - Prob. 4.55PAECh. 4 - Prob. 4.56PAECh. 4 - Prob. 4.57PAECh. 4 - Prob. 4.58PAE
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