Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
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Chapter 4, Problem 4.26RQ
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Business rule:
Business rules define the entities, relationships, and attributes used in the
- It includes the process, tactics, aspects, and aesthetics of the business.
- It is the statement used to define or limit some business feature.
- It is planned to declare the business structure or to organize the behavior of business.
An example of a business rule for the question “4...
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Chapter 4 Solutions
Database Concepts (8th Edition)
Ch. 4 - Prob. 4.1RQCh. 4 - Prob. 4.2RQCh. 4 - Prob. 4.3RQCh. 4 - What is a use case, and what is its purpose?Ch. 4 - Give an example of a data constraint.Ch. 4 - Prob. 4.6RQCh. 4 - Define the term entity, and give an example other...Ch. 4 - Explain the difference between an entity class and...Ch. 4 - Define the term attribute, and give examples for...Ch. 4 - Define the term identifier, and indicate which...
Ch. 4 - Prob. 4.11RQCh. 4 - Prob. 4.12RQCh. 4 - Prob. 4.13RQCh. 4 - Prob. 4.14RQCh. 4 - List and give an example of the three types of...Ch. 4 - Prob. 4.16RQCh. 4 - Prob. 4.17RQCh. 4 - Prob. 4.18RQCh. 4 - Define the term weak entity, and give an example...Ch. 4 - Explain the ambiguity in the definition of the...Ch. 4 - Define the term associative entity, and give an...Ch. 4 - Define the terms supertype, subtype, and...Ch. 4 - What is an exclusive subtype relationship? Give an...Ch. 4 - What is an inclusive subtype relationship? Give an...Ch. 4 - Prob. 4.25RQCh. 4 - Prob. 4.26RQCh. 4 - Prob. 4.27RQCh. 4 - Prob. 4.28RQ
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- 4. Use this information to answer Question 4-8: Consider a step pn junction made of GaAs at T = 300 K. At zero bias, only 20% of the total depletion region width is in the p-side. The built-in potential o₂ = 1.20 V. Determine the acceptor density in the p-side in unit of cm³. Answers within 5% error will be considered correct. Enter answer here 5. Determine the donor density in the n-side in unit of cm³ Answers within 5% error will be considered correct. Enter answer here 6. Determine the depletion region width, z, in the n-side in unit of μm. Answers within 5% error will be considered correct. Enter answer here 7. Determine the depletion region width, xp, in the p-side in unit of μm. Answers within 5% error will be considered correct. Enter answer here 8. Determine maximum electric field in unit of V/cm. Answers within 5% error will be considered correct. Enter answer herearrow_forward1. Use this information to answer Question 1-3: Consider a step pn junction made of silicon. The p- and n-sides are doped such that Ec - EF = 0.21 eV on the n-side and EF – Ey = 0.18 eV on the p-side. The pn junction is under zero bias and kept at T = 300 K. Find the doping density in the n-side in unit of cm -3. Answers within 5% error will be considered correct. Enter answer here 2. Find the doping density in the p-side in unit of cm -3 Answers within 5% error will be considered correct. Enter answer here 3. Find the built-in potential in unit of V. Answers within 5% error will be considered correct. Enter answer herearrow_forwardMany IT implementations are operated as projects. Project stakeholders are vital aspects of the project team. Describe a project that you have worked on and the roles of each member on the team, and then answer the following questions. If you have never been on a project, find one online and answer the following questions. Why is it important to understand the role that each member plays on the team? What organization structure was in place for the project? Was the organizational structure optimal, and if so, why was it optimal? If it was not optimal, what structure would have been the optimal structure and why?arrow_forward
- This is solely for learning purposes. Please analyze the image for me. Thank youarrow_forwardthis is for educational purposes, please anylyze the image for mearrow_forwardNot: Solve this by karnof map Exclusively "Do not use Al tools. Solve the problem by hand on paper only and upload a photo of your handwritten solution."arrow_forward
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