Modern Database Management
13th Edition
ISBN: 9780134773650
Author: Hoffer
Publisher: PEARSON
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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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If the issue set consists entirely of nominal characteristics, a vector space-based classification approach is not the best option. Please share your thoughts on this assertion. How would you apply ML to the task of categorizing nominal data?
Discuss how traceability relations are classified, elicit a brief example that defines the classification context, and draw a diagram if necessary.
When the issue set consists entirely of nominal characteristics, vector space-based classification algorithms are often not the best option. Your thoughts on this assertion? How would you use ML to the task of categorizing nominal data?
Chapter 3 Solutions
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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- Relationship between supertypes and subtypes. Where does the rule of disjunction apply?arrow_forwardWhat what is an ADT, and how does it perform its functions?Are there any potential drawbacks associated with the use of ADTs? Is there any other way that you can think of where heredity aids in addressing problems?arrow_forwardDo some research on the advantages and disadvantages of snow-flake and star schemas. Which one is less normalized than the other one?arrow_forward
- What is an ADT and how does it work? What precisely are the advantages of ADTs? When it comes to fixing an issue, how does the idea of heredity make it simpler to do?arrow_forwardDiscuss the classification of traceability relations elicit brief an example that defines the classification context and draw a diagram if necessary.arrow_forwardStrongen a weak entity set by adding primary key attributes. Please explain our choice's overlap.arrow_forward
- Data modelling is most often accomplished through the use of a(an) ________________. a. entity-relationship diagram b. data-flow diagram c. functional decomposition diagram d. activity diagramarrow_forwardThe following are the objectives for the design of the logical schema:arrow_forwardYou might outline the advantages and disadvantages of employing the star schema instead of the snowflake paradigm. Which one strays from the norm the most out of the two?arrow_forward
- If 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_forwardAssuming that appropriate names are supplied for entity types, reference modes, and predicates and that appropriate constraints are added, which of the following conceptual schema diagrams are legal? Where illegal, briefly explain the error.arrow_forward
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