Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Chapter 1, Problem 1.27PAE
Program Plan Intro
Identification of one to many or many to many relationships and a diagram for each of the relationships.
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An entity in X is connected numerous entity in Y, however an entity in Y is associated to only one entity in X. What it the type of relationship?
Select one:
a. One to many
b. One to One
c. None
d. Many to Many
Draw an Entity Relationship Diagram for all of those below. (a simple one)
Each lecturer is identified by a unique number, name and phone. A lecturer teaches several courses, and for each course there is a unique code and title (not necessarily unique). There might be several lecturers in a course.
Each course requires one or more text books. Each text book is used in at least one course. A text book is identified by a unique ISBN, and its title, authors, publisher and year of publication are known. Each course has a unique code.
The bank has many customers. Every customer has at least one account with the bank. An account may be shared by several customers. Each customer has a unique number, type, the opening date and the balance.
A flight carries many passengers on a specific airplane. Each airplane has a unique number, while each flight has a code (unique), destination and origin. A passenger has a name, passport number and nationality
Create an entity-relationship diagram for the three entities showing the correct cardinalities. Save and print a copy.
Chapter 1 Solutions
Modern Database Management
Ch. 1 - Prob. 1.1RQCh. 1 - Prob. 1.2RQCh. 1 - Prob. 1.3RQCh. 1 - Prob. 1.4RQCh. 1 - Prob. 1.5RQCh. 1 - Prob. 1.6RQCh. 1 - Prob. 1.7RQCh. 1 - How are relationships between tables expressed in...Ch. 1 - What does the term data independence mean, and why...Ch. 1 - Prob. 1.10RQ
Ch. 1 - Prob. 1.11RQCh. 1 - Prob. 1.12RQCh. 1 - Prob. 1.13RQCh. 1 - Prob. 1.14RQCh. 1 - Prob. 1.15RQCh. 1 - Prob. 1.16RQCh. 1 - Prob. 1.17RQCh. 1 - Prob. 1.18RQCh. 1 - Prob. 1.19RQCh. 1 - Prob. 1.20RQCh. 1 - Prob. 1.21RQCh. 1 - Prob. 1.22RQCh. 1 - Prob. 1.23RQCh. 1 - Prob. 1.24RQCh. 1 - Prob. 1.25RQCh. 1 - Prob. 1.26RQCh. 1 - Prob. 1.27PAECh. 1 - Prob. 1.28PAECh. 1 - Prob. 1.29PAECh. 1 - Prob. 1.30PAECh. 1 - Prob. 1.31PAECh. 1 - Prob. 1.32PAECh. 1 - Great Lakes Insurance would like to implement a...Ch. 1 - Figure 1-22 shows an enterprise data model for a...Ch. 1 - Prob. 1.35PAECh. 1 - Prob. 1.36PAECh. 1 - Prob. 1.37PAECh. 1 - Prob. 1.38PAECh. 1 - Prob. 1.39PAECh. 1 - Prob. 1.40PAECh. 1 - Prob. 1.41PAECh. 1 - Prob. 1.42PAECh. 1 - Prob. 1.43PAECh. 1 - Prob. 1.44PAECh. 1 - Consider the project data model shown in Figure...Ch. 1 - Answer the following questions concerning Figures...Ch. 1 - Prob. 1.47PAECh. 1 - Helen Jarvis wants to determine the most important...Ch. 1 - In this chapter, we described four important data...
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- Given these business rules, create the Entity Relationship Diagram, include relationships and cardinalities. A bookstore is modeling its data. On one part, we have the READERS. Readers have a registration ID, name composed by first name and last name, mailing address and list of topics of interest (cooking, fiction, etc). The books available for readers will be stored with title, year of publication, isbn code and a list of topics that the book is tagged for. Authors are also to be stored with an authorID, name composed by first name, middle name and last name, mailing address and date of birth. One book can have multiple authors, but must have at least one. One author can write multiple books, one book or even be registered as an author without authoring any books. A customer can own multiple books and only starts being a costumer after buying her/his first book. I need help understanding how this works and how I put it togetherarrow_forwardDraw an Entity Relationship Diagram (ERD) based on the flat files that have been supplied. Your ERD must incorporate all the entities and attributes supplied, as well as establishing the relationships between the entitiesarrow_forwardb. Draw an Entity Relationship diagram from each of the following descriptions. Include the attributes, primary keys (underlines) and the relationships in the diagram (like relationship in Access). i. Each of the department has many employees assigned to it, but each employee works for only one department. if. A customer can rent many videotapes from the video store. Each of the videotapes can be rented to many customers.arrow_forward
- use draw a simple diagram of any two entities linked via relationship. On one of the entities, write your university ID.arrow_forwardExplain the relationship in the below Entity Relationship Diagram (ERD) inyour own words.Answer the following questions by referring to the below sample data.arrow_forwardModify the Er diagram given below and add 5 to 6 more additions to it such as entities attributes relationships etcarrow_forward
- Question 26 In a one-to-many binary relationship, the one-to-many refers to which of the following? Group of answer choices the minimum cardinalities of the entities involved the maximum cardinalities of the entities involved the degree of the relationship the maximum cardinality of one entity involved and the the minimum cardinality of the other entity involvedarrow_forwardIn a few words, describe the logical link between the entities entity, attribute, and relationship.arrow_forwardAn entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A. What is the cardinality ratio? a. one to many b. many to one c. one to one d. many to manyarrow_forward
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