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Database Systems: Design, Implemen...

11th Edition
Steven + 8 others
Publisher: Cengage Learning
ISBN: 9781285196145

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BuyFindarrow_forward

Database Systems: Design, Implemen...

11th Edition
Steven + 8 others
Publisher: Cengage Learning
ISBN: 9781285196145
Chapter 15, Problem 3RQ
Textbook Problem
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What is data quality, and why is it important?

Explanation of Solution

Data quality:

Data quality is one of the key features of enterprise data management. The data quality can be measured based on the following:

  • Uniqueness
  • Accuracy
  • Consistency
  • Timeliness

Having high-quality data is an important in an organization. The following are the reasons of importance of data quality:

Importance of data quality:

Minimize the project risk occurred in the information technology:

  • Low quality data such as reusing the data from other available systems leads to extra works and delay.
  • Thus, the high quality data minimize the risks in the projects...

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Chapter 15 Solutions

Database Systems: Design, Implementation, & Management
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Ch. 15 - Describe the DBAs responsibilities.Ch. 15 - How can the DBA function be placed within the...Ch. 15 - Why and how are new technological advances in...Ch. 15 - Explain the DBA departments internal organization...Ch. 15 - Explain and contrast differences and similarities...Ch. 15 - Explain how the DBA plays an arbitration role...Ch. 15 - Describe and characterize the skills desired for a...Ch. 15 - What are the DBAs managerial roles? Describe the...Ch. 15 - What DBA activities support end users?Ch. 15 - Explain the DBAs managerial role in the definition...Ch. 15 - Protecting data security, privacy, and integrity...Ch. 15 - Discuss the importance and characteristics of...Ch. 15 - Assume that your company has assigned you the...Ch. 15 - Describe the activities that are typically...Ch. 15 - Why are testing and evaluation of the database and...Ch. 15 - Identify some bottlenecks in DBMS performance, and...Ch. 15 - What are typical activities in the maintenance of...Ch. 15 - How do you normally define security? How is your...Ch. 15 - What are the levels of data confidentiality?Ch. 15 - What are security vulnerabilities? What is a...Ch. 15 - Define the concept of a data dictionary, and...Ch. 15 - Using SQL statements, give some examples of how...Ch. 15 - What characteristics do a CASE tool and a DBMS...Ch. 15 - Briefly explain the concepts of information...Ch. 15 - Identify and explain some critical success factors...Ch. 15 - What tool is used in Oracle to create users?Ch. 15 - In Oracle, what is a tablespace?Ch. 15 - In Oracle, what is a database role?Ch. 15 - In Oracle, what is a datafile? How does it differ...Ch. 15 - In Oracle, what is a database profile?Ch. 15 - In Oracle, what is a database schema?

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