Modern Database Management (12th Edition)
12th Edition
ISBN: 9780133544619
Author: Jeffrey A. Hoffer, Ramesh Venkataraman, Heikki Topi
Publisher: PEARSON
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Chapter 5, Problem 5.44PAE
Program Plan Intro
Indexes for the given
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In this phase each student will select a real life problem that can be solved using database systems. Once you pick your project, start by writing a small description no more than 1 page to explain the project description. In this phase a project description is required only.
In this 2ND phase all you have to complete is preparing the UML diagram for the project that you have selected in Phase I
Draw an E-R diagram for each of the descriptions below.
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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...
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- Determine the highest normal form (1NF, 2NF, 3NF, or BCNF) for each one of the following six relations. Notice that the primary key of each relation is underlined.) 1 2 3 4 5 6 Relations Work (EmpNumber, ProjectNumber) Work (EmpNumber, ProjectNumber, ManagerSSN) Given that a project has one manager only. Work (EmpNumber, ProjectNumber, HoursPerWeek) Work (EmpNumber, ProjectNumber, EmpName, Location) Given that a project is located in one location only. Work (EmpNumber, ProjectNumber, Location) Given that a project is located in one location only. Work (EmpNumber, ProjectNumber, Location) Given that a location has one project only. Answersarrow_forwardA small training college has decided to extend and replace its existing database system. The project has received board approval and the required functional changes and additional requirements have been agreed with the users. A project manager has been appointed and has been allocated a project team of three database analysts, three development programmers and one tester, with selected users being made available for acceptance testing. An outline project schedule for the development and implementation phases has been drawn up. It includes the following tasks and related staff allocations. Task Description Duration (weeks) Staff A Define required new database functionality 4 Database Analyst DA1 B Define new data entry and update requirements 3 Database Analyst DA2 C Define new data analysis and report outputs 3 Database Analyst DA3 D Define database transfer rules 2 Database Analyst DA3 E Code and test extended database tables…arrow_forwardA company has a number of employees. The attributes of FEMPLOYEE include Employee io (identifier), Name, Address, and Birthdate. The company also has several prolects. Attributes of (PROJECT include Project ID (identfier), Project Name, and Start Date. Each employee maybeassigned tp one or more projects or may not be assigned to a project. A project must have at least one emplovee assigned and may have any number of employees assigned. An employee's billing rate may vary by project, and the company wishes to record the applicable billing rate (Billing Rate) for each employee when assigned to a particular project. A). Draw ER Model For the companyB). Do the attribute names in this description follow the guidelines for naming attributes? If not, suggest better names.C). do you have any associative entities on your ERD? If so, what are the identifers for those associative entities?arrow_forward
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