EBK MODERN DATABASE MANAGEMENT,
13th Edition
ISBN: 9780134792279
Author: TOPI
Publisher: YUZU
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Textbook Question
Chapter 3, Problem 3.24PAE
Refer to Problem and Exercise 2-44 in Chapter 2 Part f. Redraw the ERD for your answer to this exercise using appropriate supertypes and subtypes.
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Chapter 3 Solutions
EBK MODERN DATABASE MANAGEMENT,
Ch. 3 - Define each of the following terms: supertype...Ch. 3 - Match the following terms and definitions:...Ch. 3 - Contrast the following terms: supertype; subtype...Ch. 3 - State two conditions that indicate when a database...Ch. 3 - Prob. 3.5RQCh. 3 - Give an example (other than those discussed in the...Ch. 3 - What is the attribute inheritance? Why is it...Ch. 3 - Give an example of each of the following: a...Ch. 3 - What types of business rules are normally captured...Ch. 3 - What is the purpose of a subtype discriminator?
Ch. 3 - Prob. 3.11RQCh. 3 - In what ways is starting a data modeling project...Ch. 3 - Prob. 3.13RQCh. 3 - Prob. 3.14RQCh. 3 - What do you purchase when you acquire a packaged...Ch. 3 - In Figure 3-5b, why must the minimum cardinality...Ch. 3 - When is a member of a supertype always a member of...Ch. 3 - Examine the hierarchy for the university EER...Ch. 3 - Add a subtype discriminator for each of the...Ch. 3 - For simplicity, subtype discriminators were left...Ch. 3 - Refer to the employee EER diagram in Figure 3-2....Ch. 3 - Refer to the EER diagram for patients in Figure...Ch. 3 - Figure 3-13 shows the development Of entity...Ch. 3 - Refer to Problem and Exercise 2-44 in Chapter 2...Ch. 3 - For a library, the entity type HOLDING has four...Ch. 3 - A bank has three types of accounts: checking,...Ch. 3 - Refer to your answer to Problem and Exercise 2-4...Ch. 3 - Refer to your answer to Problem and Exercise 3-24...Ch. 3 - Prob. 3.29PAECh. 3 - Draw an EER diagram for the following situation:...Ch. 3 - Develop an EER model for the following situation,...Ch. 3 - Prob. 3.32PAECh. 3 - Prob. 3.33PAECh. 3 - Prob. 3.34PAECh. 3 - Based on the EER diagram constructed for Problem...Ch. 3 - Prob. 3.36PAECh. 3 - Prob. 3.37PAECh. 3 - Add the following to Figure 3-16: An EMPLOYMENT...
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- What's the difference between weak and strong entity sets?arrow_forwardIf the issue set consists entirely of nominal characteristics, vector space-based classification algorithms are usually not the best option. Let me know what you think about this assertion. How would you apply ML to the task of categorizing nominal data?arrow_forwardDiscuss the categorization of traceability relations; elicit a short example that describes the classification context; and, if required, construct a diagram.arrow_forward
- Give an example of each of the following: a. a supertype/subtype relationship where the disjoint rule applies b. a supertype/ subtype relationship where the overlap rule appliesarrow_forwardAttributes from the identifying entity set's main key may be added to a weak entity set to make it strong. Please describe the overlap that will develop as a result of our choice.arrow_forwardExplain the biggest drawback of one-vs-one multi-class classification when compared to one-vs-all multi-class classification. Be specific.arrow_forward
- Detailed answer pleasearrow_forwardWhat is the function of a ModelGen operator? A It identifies fundamental conflicts and devises rules for resolving them. B It takes a model in one meta-model and translates it into another meta-model. (C) It transforms the data from one data model to another and applies a schema mapping. D It transforms data from the model and schema in which it is stored into the target message format.arrow_forwardWrite “Handle Return” use case for POS system and make the necessary changes in domain model to support this use case. Discuss each new entity (Conceptual object(s), association(s) and attributes) added to the model.arrow_forward
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