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Suppose we have an EER design that has superclass Movies with subclasses. Consider the following possible pairs of subclasses: 1. {B,NB): B = movies in which Kevin Bacon appears; NB = movies in which Kevin Bacon does not appear 2. {B,R}: B = movies in which Kevin Bacon appears; R = movies in which Julia Roberts appears 3. (B,K): B = movies in which Kevin Bacon appears; K= movies in which Val Kilmer appears 4. {L,S}: L = movies more than 100 minutes long; S = movies less than 105 minutes long Consider whether each pair of subclasses is complete or incomplete (partial), and whether the pair is overlapping or disjoint (exclusive). Which of the following statements is correct? Hint: You can use this assumption to answer this question: Both Bacon and Roberts appear in Flatliners. There are movies in which neither Bacon nor Kilmer appears. There is no movie in which both Bacon and Kilmer appear. There are movies in which neither Bacon nor Kilmer appears. There is no movie in which both Bacon and Kilmer appear. Every movie has a length, and some movies have a length of 101-104 minutes. A (B, NB) is complete and disjoint. (B) {B, K) is complete and disjoint {B, NB) is complete and overlapping D) (B, R) is incomplete and disjoint E {B, K) is incomplete and overlapping F) (L, S) is complete and overlapping

Suppose we have an EER design that has superclass Movies with subclasses. Consider the following possible pairs of subclasses: 1. {B,NB): B = movies in which Kevin Bacon appears; NB = movies in which Kevin Bacon does not appear 2. {B,R}: B = movies in which Kevin Bacon appears; R = movies in which Julia Roberts appears 3. (B,K): B = movies in which Kevin Bacon appears; K= movies in which Val Kilmer appears 4. {L,S}: L = movies more than 100 minutes long; S = movies less than 105 minutes long Consider whether each pair of subclasses is complete or incomplete (partial), and whether the pair is overlapping or disjoint (exclusive). Which of the following statements is correct? Hint: You can use this assumption to answer this question: Both Bacon and Roberts appear in Flatliners. There are movies in which neither Bacon nor Kilmer appears. There is no movie in which both Bacon and Kilmer appear. There are movies in which neither Bacon nor Kilmer appears. There is no movie in which both Bacon and Kilmer appear. Every movie has a length, and some movies have a length of 101-104 minutes. A (B, NB) is complete and disjoint. (B) {B, K) is complete and disjoint {B, NB) is complete and overlapping D) (B, R) is incomplete and disjoint E {B, K) is incomplete and overlapping F) (L, S) is complete and overlapping

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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### Classification of Movie Subclasses in an EER Design #### Scenario: We have an Enhanced Entity-Relationship (EER) design that has the superclass "Movies" with various subclasses. The pairs of subclasses under consideration are: 1. **{B, NB}**: - B = Movies in which Kevin Bacon appears - NB = Movies in which Kevin Bacon does not appear 2. **{B, R}**: - B = Movies in which Kevin Bacon appears - R = Movies in which Julia Roberts appears 3. **{B, K}**: - B = Movies in which Kevin Bacon appears - K = Movies in which Val Kilmer appears 4. **{L, S}**: - L = Movies more than 100 minutes long - S = Movies less than 105 minutes long #### Task: Determine whether each pair of subclasses is **complete** or **incomplete (partial)**, and whether the pairs are **overlapping** or **disjoint (exclusive)**. Select the correct statement below. #### Hint: - **Both Bacon and Roberts appear in Flatliners.** - **There are movies in which neither Bacon nor Kilmer appears.** - **There is no movie in which both Bacon and Kilmer appear.** - **There are movies in which neither Bacon nor Kilmer appears.** - **Every movie has a length, and some movies have a length of 101-104 minutes.** #### Options: A. **{B, NB} is complete and disjoint.** B. **{B, K} is complete and disjoint.** C. **{B, NB} is complete and overlapping.** D. **{B, R} is incomplete and disjoint.** E. **{B, K} is incomplete and overlapping.** F. **{L, S} is complete and overlapping.** --- ### Explanation of Graphs and Diagrams There are no diagrams in the provided information. The task involves a textual analysis based on the given hints and subclass pairs. #### Answer the Question: Based on the provided details and hints, one must determine the completeness and overlapping or disjoint nature of the given subclass pairs. ### Conclusion As an educational exercise, analyze the subclass relationships in the context of movie appearances by certain actors and movie lengths, and use logical reasoning to select the accurate classification from the
Transcribed Image Text:### Classification of Movie Subclasses in an EER Design #### Scenario: We have an Enhanced Entity-Relationship (EER) design that has the superclass "Movies" with various subclasses. The pairs of subclasses under consideration are: 1. **{B, NB}**: - B = Movies in which Kevin Bacon appears - NB = Movies in which Kevin Bacon does not appear 2. **{B, R}**: - B = Movies in which Kevin Bacon appears - R = Movies in which Julia Roberts appears 3. **{B, K}**: - B = Movies in which Kevin Bacon appears - K = Movies in which Val Kilmer appears 4. **{L, S}**: - L = Movies more than 100 minutes long - S = Movies less than 105 minutes long #### Task: Determine whether each pair of subclasses is **complete** or **incomplete (partial)**, and whether the pairs are **overlapping** or **disjoint (exclusive)**. Select the correct statement below. #### Hint: - **Both Bacon and Roberts appear in Flatliners.** - **There are movies in which neither Bacon nor Kilmer appears.** - **There is no movie in which both Bacon and Kilmer appear.** - **There are movies in which neither Bacon nor Kilmer appears.** - **Every movie has a length, and some movies have a length of 101-104 minutes.** #### Options: A. **{B, NB} is complete and disjoint.** B. **{B, K} is complete and disjoint.** C. **{B, NB} is complete and overlapping.** D. **{B, R} is incomplete and disjoint.** E. **{B, K} is incomplete and overlapping.** F. **{L, S} is complete and overlapping.** --- ### Explanation of Graphs and Diagrams There are no diagrams in the provided information. The task involves a textual analysis based on the given hints and subclass pairs. #### Answer the Question: Based on the provided details and hints, one must determine the completeness and overlapping or disjoint nature of the given subclass pairs. ### Conclusion As an educational exercise, analyze the subclass relationships in the context of movie appearances by certain actors and movie lengths, and use logical reasoning to select the accurate classification from the
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