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Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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Chapter 4, Problem 4.11RQ
Program Plan Intro
Ways to represent the relationship in the ER diagram
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Describe the most common way in which relationships in an E-R diagram are expresses in a corresponding relational data model
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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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- The ______________ model is a simple but highly useful way to organize data into collections of two-dimensional tables called relations.arrow_forwardData modeling is most often accomplished through the use of a(n) __________________. a. entity-relationship diagram b. data-flow diagram c. functional decomposition diagram d. activity diagramarrow_forwardUsing a graphics program, develop an entity-relationship diagram for a database application for an Internet bookstore where students buy textbooks from a salesperson and receive invoices for their purchases. Use Figure 5.5 as a guide.arrow_forward
- Describe how the relationship (supertype/subtype) of an E-R diagram is transformed into relationsarrow_forwardDescribe how the composite attribute of an E-R diagram is transformed into relationsarrow_forwardWhen working with database entity relationship modeling, should the cardinality between entities be translated/ read from both ends of the notation? In other words, should a relationship between entities have the ability to understood if read forwards and backwards?arrow_forward
- Describe how the relationship (1:M) of an E-R diagram is transformed into relationsarrow_forwardShould the cardinality between entities be translated/read from both ends of the notation when dealing with database entity relationship modeling? To put it another way, can a connection between two things be comprehended by reading it both forward and backward?arrow_forward1. To create the ERD for the SIM system, the Entity - Relationship Diagram, which helps to describe the database for a computer system, go back to the information system DFD you created for Assignment 4 and just label the data flow arrows using the cardinality notation. That will show the relationship between the entities on your ERD. 2. To design sample data tables from the ERD you created in #1, you need to think of the objects that will be part each process. These objects will become the column headers for your table. So for example, the Customers table will have fields like name and address, and their household should have an ID #. Do this for all the objects in your ERD. Carlie asked that the database be a 3NF or Third Normal Form, all that means is that you will have a simple, one field, primary key for each of your data tables. No data repeats in any table and all of the fields in a table are dependent on its primary key. So you should create 6 data tables, one for each of the…arrow_forward
- Can you please help me in how I can turn the Entity Relationship diagram into a Logical Database Diagram? I know I need to list out all the entities, but I am not sure how to draw the relation. If you would please write it step by step for me so I can practice, that would be much appreciated.arrow_forwardDescribe the Entity-Relationship Diagram (ERD) and its use in representing data models.arrow_forwardDesign a Relational Database by Mapping the following Entity-Relationship Diagram (ERD) into Relational Model. You must clearly determine the PK of each relation. Also, you should show the links between FKs and PKs in your answer. SName Owner SHIP MOVEMENT PName HISTORY HOME PORT SHIP PORT Latitude (0,") VISITS (0.") Timestamp Longitude N N N (1.1) IN TYPE ON 1 1 Date Time StartDate VISITS Type EndDate Tonnage SHIP TYPE Name STATE/COUNTRY Name SEA/OCEAN/LAKE Hull Continentarrow_forward
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