Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 13, Problem 5RQ
Program Plan Intro
Operational data:
- Data quality is one of the key features of enterprise data management.
- The data obtained from the
operational system is low quality data because of the following reasons:- Obtaining the data from outside the organization.
- Redundant storage of data and inconsistent metadata.
- Problems while entering data due to poor interfaces, manual mistypes of data.
- The poor quality of the data is not recognized by the organization itself is an issue.
Decision support data:
The decision support data is used to interact with the software systems which help the users in the compilation of problems that occur in documents, files, raw data, business information and many such. Decision Support Systems (DSS) analyzes and operates the decision support data.
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Chapter 13 Solutions
Database Systems: Design, Implementation, & Management
Ch. 13 - Prob. 1RQCh. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - What is a data warehouse, and what are its main...Ch. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQ
Ch. 13 - Prob. 11RQCh. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Prob. 15RQCh. 13 - Prob. 16RQCh. 13 - Prob. 17RQCh. 13 - Prob. 18RQCh. 13 - Prob. 19RQCh. 13 - Prob. 21RQCh. 13 - Prob. 22RQCh. 13 - Prob. 23RQCh. 13 - Prob. 24RQCh. 13 - Prob. 25RQCh. 13 - Prob. 26RQCh. 13 - Prob. 27RQCh. 13 - Prob. 28RQCh. 13 - Prob. 30RQCh. 13 - What is the SQL command to list the total sales by...Ch. 13 - What is the SQL command to list the total sales by...Ch. 13 - What is the SQL command to list the total sales by...Ch. 13 - What is the SQL command to list the total sales by...Ch. 13 - What is the SQL command to list the number of...Ch. 13 - What is the SQL command to list the number of...Ch. 13 - What is the SQL command to list the number of...Ch. 13 - Using the answer to Problem 10 as your base, what...
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Similar questions
- To evaluate data quality, there are six elements to consider.arrow_forwardWhat are the three basic classifications of diverse data sources, and how would you characterize and categorize each? Are you able to explain the difficulties associated with dealing with data that has a high valence?arrow_forwardIn the data hierarchy, what distinguishes data items from data attributes? How is scope determined?arrow_forward
- What are the differences between the objectives of data summarisation and data reduction?arrow_forwardWhich data modelling methods are the most helpful during the period devoted to analysis, and why is it absolutely necessary to make use of these strategies? How do we go about selecting the data points that will be used in the process of modelling?arrow_forwardHow does data quality impact decision-making in organizations, and what are some common data quality issues?arrow_forward
- Which data modeling techniques are most helpful and why are they important during the analysis phase? How do we determine which data points we need to model?arrow_forwardWhich data modeling techniques are most effective and why are they important during the analysis phase? How do we determine which data points we need to model?arrow_forwardThe processes used to complete a data science project vary in their number of steps and functions, but in the end, the objectives and outcomes are similar. Research on the Web to identify what you believe to be the set (version) of steps that you'd use to complete a Data Science project. You should find versions with 5, 7, 9, 11, 12, or more steps. If you choose a particular set of steps, cite your source and explain why you would use that approach. If you wish, you can develop your own approach, drawing on the research, if you think there may be a better way. As you get deeper into Data Science, in subsequent courses, you should learn the validity of your approach. List the steps of your approach, cite its source, and provide an explanation of why this particular approach would work best for you.arrow_forward
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