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Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

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Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 16, Problem 2RQ
Textbook Problem
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Define dirty data, and identify some of its sources.

Program Plan Intro

Data:

Data is a raw material, unprocessed fact which does not based on information. For example: Each student score is considered as the data.

Explanation of Solution

Dirty data and its sources:

Dirty data is a data which suffers from discrepancies and imprecisions.

Dirty data comes for following reasons,

  • The data become dirty because of data-entry errors and typographical errors.
  • The abbreviation use is not in a standard form for character data...

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Chapter 16 Solutions

Database Systems: Design, Implementation, & Management
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Ch. 16 - Describe the DBAs responsibilities.Ch. 16 - How can the DBA function be placed within the...Ch. 16 - Why and how are new technological advances in...Ch. 16 - Explain the DBA departments internal organization...Ch. 16 - Explain and contrast differences and similarities...Ch. 16 - Explain how the DBA plays an arbitration role...Ch. 16 - Describe and characterize the skills desired for a...Ch. 16 - What are the DBAs managerial roles? Describe the...Ch. 16 - What DBA activities support end users?Ch. 16 - Explain the DBAs managerial role in the definition...Ch. 16 - Protecting data security, privacy, and integrity...Ch. 16 - Discuss the importance and characteristics of...Ch. 16 - Assume that your company has assigned you the...Ch. 16 - Describe the activities that are typically...Ch. 16 - Why are testing and evaluation of the database and...Ch. 16 - Identify some bottlenecks in DBMS performance, and...Ch. 16 - What are typical activities in the maintenance of...Ch. 16 - How do you normally define security? How is your...Ch. 16 - What are the levels of data confidentiality?Ch. 16 - What are security vulnerabilities? What is a...Ch. 16 - Define the concept of a data dictionary, and...Ch. 16 - Using SQL statements, give some examples of how...Ch. 16 - What characteristics do a CASE tool and a DBMS...Ch. 16 - Briefly explain the concepts of information...Ch. 16 - Identify and explain some critical success factors...Ch. 16 - How have cloud-based data services affected the...Ch. 16 - What tool is used in Oracle to create users?Ch. 16 - In Oracle, what is a tablespace?Ch. 16 - In Oracle, what is a database role?Ch. 16 - In Oracle, what is a datafile? How does it differ...Ch. 16 - In Oracle, what is a database profile?

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