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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- In your own words, what is clustering? Which data mining tasks does it facilitate?arrow_forwardDiscuss the advantages of using complex data types such as arrays and JSON in modern databases.arrow_forwardWhat are the advantages of using columnar storage formats like Parquet and ORC in data warehousing, and how do they enhance query performance?arrow_forward
- How does a "sparse matrix" storage impact the data model in large datasets?arrow_forwardDescribe the process of keyword indexing in a data warehouse. What techniques are commonly used to improve keyword search performance?arrow_forwardWhat does the term "clustering" refer to, exactly? In the field of data mining, what potential applications does it have?arrow_forward
- The concept of "data fragmentation" invites the question: what does it truly mean to say that data is fragmented? What precisely does it mean when we say that the data are fragmented in the way that they are presented here?arrow_forwardHow is a clustered index different from a sparse index, and what are the advantages of using one?arrow_forwardWhat exactly is clustering? What uses does it have in the realm of data mining?arrow_forward
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