Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 2, Problem 19RQ
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Sparse data:
- Sparse data is generally considered to have high percentage of data but will not contain any value in it.
- The values that could hold large volume of storage space in a file includes the value such as “NULL”, empty, “N/A”.
- It is considered as the case where the number of attributes present in the table is considered to be very large but the instance of the value occurring in them is considered to be low...
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Chapter 2 Solutions
Database Systems: Design, Implementation, & Management
Ch. 2 - Prob. 1RQCh. 2 - What is a business rule, and what is its purpose...Ch. 2 - How do you translate business rules into data...Ch. 2 - Prob. 4RQCh. 2 - Explain how the entity relationship (ER) model...Ch. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - What is a relationship, and what three types of...Ch. 2 - Give an example of each of the three types of...Ch. 2 - What is a table, and what role does it play in the...Ch. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Prob. 19RQCh. 2 - Prob. 20RQCh. 2 - Prob. 21RQCh. 2 - Prob. 22RQCh. 2 - Prob. 23RQCh. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Using Figure P2.6 as your guide, work Problems 68....Ch. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Typically, a hospital patient receives medications...Ch. 2 - Prob. 10PCh. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 16PCh. 2 - Prob. 17P
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- How do the performance characteristics differ when querying against binary large object (BLOB) data types versus textual data types in databases?arrow_forwardWhat is the difference between a clustered index and a sparse index? What are the benefits of using a clustered index?arrow_forwardExactly what is the meaning of the term "clustering," anyway? How does it function in the context of data mining?arrow_forward
- How is a clustered index created as opposed to a sparse one, and what characteristics make it different from a sparse index?arrow_forwardJust what are the distinctions between a sparse index and a clustered one?arrow_forwardIn comparison to a sparse index, what is the advantage of a clustered index?arrow_forward
- In the hierarchy of data, what is the difference between a data attribute and a data item? What is the domain of an attribute?arrow_forwardWhat distinguishes a clustered index from a sparse index, and how does one go about creating a clustered index?arrow_forwardWhat distinguishes a Contrast Repository from a Data Dictionary?arrow_forward
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