Database Systems: Design, Implementation, & Management
11th Edition
ISBN: 9781285196145
Author: Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher: Cengage Learning
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Question
Chapter 5, Problem 5RQ
Program Plan Intro
Subtype:
- Subtype is one type of entity which inherits the attributes from other entity.
- The subtype relationship is a grouping of entities type in single entity that shares the common attributes or relationships which are different from other grouping.
- It is related to an entity supertype, where the supertype entity has common characteristics and the subtype entity has the unique characteristics of each entity subtype.
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Give an example of each subtype and supertype relationship?
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Chapter 5 Solutions
Database Systems: Design, Implementation, & Management
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is the difference between partial...Ch. 5 - Prob. 7RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 16RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
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Similar questions
- When establishing subtype associations, consider all of your database table choices.Describe the criteria you'd use to choose one design above the others.arrow_forwardWhen using subtype associations, talk about the database table choices that are accessible.Decide the design you want to employ and talk about the relevant issues.arrow_forwardDiscuss the database table options available when implementing subtype associations.arrow_forward
- What are the Feature Selection for Classification?arrow_forwardWhen creating subtype associations, it is important to consider the database table possibilities accessible to you.Discuss the factors that you would consider when deciding one design to employ over the others.arrow_forwardWhat is the definition of subtype hierarchies?arrow_forward
- Discuss the database table options available when implementing subtype associations. Discuss the considerations you would use in choosing one design over the othersarrow_forwardWhen developing subtype associations, talk about the database table options.Discuss the factors that would influence your decision to choose one design over the others.arrow_forwardGive an example of mapping a composite attribute?arrow_forward
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