Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 5.50PAE
Problems and Exercises 8-65i5 through 8-68 refer to the large Pine Valley Furniture Company data set provided with the text.
8-67. Consider the EER diagram for Pine Valley Furniture shown in Figure 3-12. Figure 8-15 looks at a portion of that EER diagram.
Figure 8-15 Figure for Problem and Exercise 8-67
Let’s make a few assumptions about the average usage of the system:
- There are 60,000 customers, and of these, 85 percent represent regular accounts and 15 percent national accounts.
- Currently, the system stores 2,500,000 orders, although this number is constantly changing.
- Each order has an average of 30 products.
- There are 5,000 products.
- Approximately 1,500 orders are placed per hour.
- Based on these assumptions, draw a usage map for this portion of the EER diagram.
- Management would like employees only to use this
database Do you see any opportunities for denormalization?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
I tried to understand this question. it says:
An employee of JC Consulting created the query shown in Figure 2-48. He wants to list the client name, project ID, and task description for each task assigned to the projects for that client. Will this query be successful? If not, what needs to change in order for this query to work correctly?
Can someone help me with this problem?
Convert the given ER diagram to Relational Data Model.
Draw the complete diagram.
I am working on creating a logical entity relationship diagram for my database class. I am wondering if I am creating my diagram correctly. I'm having a hard time finding primary and foreign keys and I'd like to make sure the cardinality for my diagram is correct.
Chapter 5 Solutions
Modern Database Management (12th Edition)
Ch. 5 - Prob. 5.1RQCh. 5 - Prob. 5.2RQCh. 5 - Prob. 5.3RQCh. 5 - Prob. 5.4RQCh. 5 - Prob. 5.5RQCh. 5 - Prob. 5.6RQCh. 5 - Prob. 5.7RQCh. 5 - Prob. 5.8RQCh. 5 - Explain why you sometimes have to reserve much...Ch. 5 - Why are field values sometimes coded?
Ch. 5 - Prob. 5.11RQCh. 5 - Prob. 5.12RQCh. 5 - Explain why normalized relations may not comprise...Ch. 5 - Prob. 5.14RQCh. 5 - List three common situations that suggest that...Ch. 5 - Explain the reasons why some experts are against...Ch. 5 - Prob. 5.17RQCh. 5 - Prob. 5.18RQCh. 5 - Prob. 5.19RQCh. 5 - Prob. 5.20RQCh. 5 - Prob. 5.21RQCh. 5 - State nine rules of thumb for choosing indexes.Ch. 5 - One of the strongest recommendations regarding...Ch. 5 - Explain why an index is useful only if there is...Ch. 5 - Indexing can clearly be very beneficial. Why...Ch. 5 - Consider the following two relations for...Ch. 5 - Prob. 5.28PAECh. 5 - Prob. 5.29PAECh. 5 - Prob. 5.30PAECh. 5 - Prob. 5.31PAECh. 5 - Suppose you are designing a default value for the...Ch. 5 - When a student has not chosen a major at a...Ch. 5 - Prob. 5.34PAECh. 5 - Prob. 5.35PAECh. 5 - Consider the relations in Problem and Exercise...Ch. 5 - Prob. 5.37PAECh. 5 - Prob. 5.38PAECh. 5 - Prob. 5.39PAECh. 5 - Prob. 5.40PAECh. 5 - Prob. 5.41PAECh. 5 - Consider the relations specified in Problem and...Ch. 5 - Prob. 5.43PAECh. 5 - Prob. 5.44PAECh. 5 - Prob. 5.45PAECh. 5 - Prob. 5.46PAECh. 5 - Prob. 5.47PAECh. 5 - Problems and Exercises 8-65 through 8-68 refer to...Ch. 5 - Refer to the large Pine Valley Furniture Company...Ch. 5 - Problems and Exercises 8-65i5 through 8-68 refer...Ch. 5 - Refer to Figure 4-5 0. For each of the following...
Knowledge Booster
Learn more about
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
- For each of the following E-R diagrams transform the diagram to a relational schema (draw the graphical notation). QI) COURSE Course ID Description Credits {Prerequisite} Q2) COURSE Course ID Is Prerequisite Description Creditsarrow_forwardProblems 1 and 3 on pages 234 - 236 of the course textbook. You must use Draw.IO or MS Visio to complete this case study.Create an ER diagram Explain all normalization issues that exist in the ER Diagram. I want the ER Diagram before normalization and after normalization. Explain all normalization problems that you corrected between the first and second ER diagram. Normalize the data in the ER Diagram to 3NF See the video for a demonstration on how to do this: https://www.youtube.com/watch?v=Nq91b4TQ29Q Create a dependency diagram using the information from your ER diagram. See the video for a demonstration on how to do this: https://www.youtube.com/watch?v=wFOJnRxqrp8 You must label all determinants and dependencies. Note: You must convert your DrawIO files to .jpg, gif or bmp images before you upload the assignment to Canvas. Copy and paste all diagrams into an MS Word document. Please make sure that you enlarge all diagrams so they can be easily…arrow_forwardProblem: Transform the table into 1NF, 2NF, and 3NF. subject Advanced student_number firstname 035-20130-0205 term lastname year 2016-2017 program BSIT 2nd Database Mairo Eli Systems Management Information 035-20130-0205 Systems Systems Analysis and 035-20130-0205 Design 2016-2017 2nd BSIT Mairo Eli 2016-2017 2nd BSIT Mairo Eliarrow_forward
- Please written by computer source Please help me with this It's from MB-500 renewal Question 19 of 25 A company uses Dynamics 365 Supply Chain Management. The company is configuring dual-write for implementation. You need to access the out-of-the-box data entity mappings in Dynamics 365 Supply Chain Management. Which three actions must you complete first? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point. Select all answers that apply. 1.complete the health check 2.create the Microsoft Dataverse environment 3.select the legal entities to integrate 4.run the initial sync process 5.enable the dual-write application Question 20 of 25 You are a Dynamics 365 Finance technical lead creating a value proposition presentation for using the dual-write solution. You need to identify key concepts in dual-write that add value. Which two concepts should you identify? Each correct answer presents part of the solution. NOTE: Each correct selection…arrow_forwardConvert the given ER diagram to Relational Schema. Draw the complete diagram.arrow_forwardTransform the above ER diagram into Relational Schemasarrow_forward
- Garden Glory is a partnership that provides gardening and yard maintenance services to individuals and organizations. Garden Glory is owned by two partners. They employ two office administrators and a number of full- and part-time gardeners. Garden Glory will provide one-time garden services, but it specializes in ongoing service and maintenance. Many of its customers have multiple buildings, apartments, and rental houses that require gardening and lawn maintenance services. Figure 2-32 shows data that Garden Glory collects about properties and services. Suppose Garden Glory decides to add the following table: SERVICE-FEE (PropertyID, ServiceID, Description, Amount) Add this table to what you consider to be the best design in your answer to part B. Modify the tables from part B as necessary to minimize the amount of data duplication. Will this design work for the data in Figure 2-31? If not, modify the design so that this data will work. State the assumptions implied by this…arrow_forwardGarden Glory is a partnership that provides gardening and yard maintenance services to individuals and organizations. Garden Glory is owned by two partners. They employ two office administrators and a number of full- and part-time gardeners. Garden Glory will provide one-time garden services, but it specializes in ongoing service and maintenance. Many of its customers have multiple buildings, apartments, and rental houses that require gardening and lawn maintenance services. Figure 2-32 shows data that Garden Glory collects about properties and services.arrow_forwardGarden Glory is a partnership that provides gardening and yard maintenance services to individuals and organizations. Garden Glory is owned by two partners. They employ two office administrators and a number of full- and part-time gardeners. Garden Glory will provide one-time garden services, but it specializes in ongoing service and maintenance. Many of its customers have multiple buildings, apartments, and rental houses that require gardening and lawn maintenance services. Figure 2-32 shows data that Garden Glory collects about properties and services. PROPERTY (PropertyID, PropertyName, PropertyType, Street, City, Zip, ServiceDate, Description, Amount) PROPERTY (PropertyID, PropertyName, PropertyType, Street, City, Zip, ServiceDate)SERVICE (ServiceDate, Description, Amount) PROPERTY (PropertyID, PropertyName, PropertyType, Street, City, Zip, ServiceDate)arrow_forward
- Garden Glory is a partnership that provides gardening and yard maintenance services to individuals and organizations. Garden Glory is owned by two partners. They employ two office administrators and a number of full- and part-time gardeners. Garden Glory will provide one-time garden services, but it specializes in ongoing service and maintenance. Many of its customers have multiple buildings, apartments, and rental houses that require gardening and lawn maintenance services. Figure 2-32 shows data that Garden Glory collects about properties and services. Given your assumptions, comment on the appropriateness of the following designs: PROPERTY (PropertyName, PropertyType, Street, City, Zip, ServiceDate, Description, Amount) PROPERTY (PropertyName, PropertyType, Street, City, Zip, ServiceDate, Description, Amount) PROPERTY (PropertyName, PropertyType, Street, City, Zip, ServiceDate, Description, Amount) PROPERTY (PropertyID, PropertyName, PropertyType, Street, City, Zip, ServiceDate,…arrow_forwardDraw an ERD for the following requirements There are many air conditioners in EMU. Each air conditioner has a unique inventory number. We have to store the model and make of each air conditioner. Each air conditioner is located in a room. Each room is identified by a unique roomid. We also store the capacity and type of the room. Each air conditioner is serviced twice a year. For each service, we need to store the date of the service and the name of the person who performed the service.arrow_forwardConvert the following UML diagram to relations:arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
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
Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY