Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
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Expert Solution & Answer
Chapter 5, Problem 5.3RQ
Explanation of Solution
Normalization:
In
Normalization is mainly used for two purposes. They are:
- Reduce or eliminate redundancy in the database table.
- Ensuring data dependencies.
Importance of Normalization process:
- The normalization process is important while creating a table in the database, because the process will eliminate the redundancy of data in the database table.
- The normalization process is then applied to each relation and the extra relations are created.
Example:
Consider the example of the above scenario is as follows:
number | name | age | sex | course |
1 | John | 23 | M | C1 |
2 |
Expert Solution & Answer
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Explain why it is beneficial to first go through the normalization procedure and then denormalize.
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Chapter 5 Solutions
Database Concepts (8th Edition)
Ch. 5 - Explain how entities are transformed into tables.Ch. 5 - Prob. 5.2RQCh. 5 - Prob. 5.3RQCh. 5 - What is denormalization?Ch. 5 - Prob. 5.5RQCh. 5 - Explain the problems that denormalized tables may...Ch. 5 - Explain how the representation of weak entities...Ch. 5 - Explain how supertype and subtype entities are...Ch. 5 - Prob. 5.9RQCh. 5 - Prob. 5.10RQ
Ch. 5 - Show two different ways to represent the 1:1...Ch. 5 - Prob. 5.12RQCh. 5 - Prob. 5.13RQCh. 5 - Prob. 5.14RQCh. 5 - Prob. 5.15RQCh. 5 - Prob. 5.16RQCh. 5 - For your answer to question 5.15, code an SQL...Ch. 5 - Prob. 5.18RQCh. 5 - Prob. 5.20RQCh. 5 - Prob. 5.21RQCh. 5 - Explain how the terms parent table and child table...Ch. 5 - For your answers to questions 5.20, 5.21, and...Ch. 5 - Prob. 5.24RQCh. 5 - Prob. 5.25RQCh. 5 - Prob. 5.26RQCh. 5 - Prob. 5.27RQCh. 5 - Prob. 5.28RQCh. 5 - Define the three types of recursive binary...Ch. 5 - Prob. 5.30RQCh. 5 - Prob. 5.31RQCh. 5 - Prob. 5.32RQCh. 5 - Prob. 5.33RQCh. 5 - Prob. 5.34RQCh. 5 - Code an SQL statement that creates a table with...
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- Selected columns are removed from a table using a relational database's "select" method.It's possible that I'm mistaken.arrow_forwardWhat is the condition for any table to be in first normal form.arrow_forwardHow may the structure of a table be altered via the usage of the SQL language? Which of these important alterations should be put up as possible options for consideration? What specific commands have to be run in order for these alterations to take effect?arrow_forward
- How exactly does one go about utilizing the SQL programming language to change the format of an existing table? Which of these more substantial types of shifts could be open to discussion and consideration? In order for these changes to take effect, which commands need to be executed?arrow_forwardWhat does the term "transitive" mean? What is the rule for converting tables in the second normal form to tables in the third normal form?arrow_forwardUsing the Online SQL Editor, answer the following question with screenshots. Link: https://www.programiz.com/sql/online-compiler/ Question: 1) Create a new table named Production, with the following columns:-category_id which is set as the Primary Key-category_name which is limited to 40 characters-list_price which does not allow storing of null values-model_year which is set to 2020 if value is missing (or not coded) 2) Add the following data to Production table: Vios @list price of 650,000; Innova @list price of 1,500,000; and Fortuner @list price of 2,000,000 and year model 2023.arrow_forward
- How exactly would one go about modifying the framework of a table using SQL? Which of the following general kinds of changes are up for discussion? Which instructions need to be carried out so that these changes may be put into effect?arrow_forwardConsider a scenario in which the SQL statement is of the form SELECT DISTINCT c1, c2, c3 from T. Why might it make sense to create an index to optimize this query?arrow_forwardRemoving columns that meet specified criteria is the goal of a select operation in relational databases.Is this a right or a wrong answer?arrow_forward
- If something is transitive, what does that entail? What is the rule for converting tables from the second normal form to the third normal form?arrow_forwardWith the help of a select operation in a relational database, one may reduce the amount of space used by a table by removing columns that meet certain requirements.Is this the right or erroneous interpretation?arrow_forwardInsert the data into the tables you created in Problem 1.arrow_forward
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