Database Concepts (7th Edition)
7th Edition
ISBN: 9780133544626
Author: David M. Kroenke, David J. Auer
Publisher: PEARSON
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Chapter 5, Problem 5.6RQ
Explain the problems that denormalized tables may have for insert, update, and delete actions.
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Reducing the size of a table in a relational database may be done using a select operation by removing columns that aren't needed.Is that so, or not?
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Chapter 5 Solutions
Database Concepts (7th 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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- What must be remembered above all else when deleting rows, columns, and tables?arrow_forwardA select procedure in a relational database can shrink a table's size by deleting columns that don't fit a certain set of requirements.arrow_forwardA select procedure in a relational database can shrink a table's size by deleting columns that don't fit a certain set of requirements.Is it good or bad?arrow_forward
- What is an important caution to keep in mind when deleting rows, columns, and tables?arrow_forwardIn a relational database, a select operation may reduce the size of a table by removing columns that don't meet a set of criteria.Is it right or wrong?arrow_forwardA select operation in a relational database is used to reduce the size of a table by deleting columns that meet particular requirements.Is this true or false?arrow_forward
- By skipping columns that don't fit certain requirements, a select operation may drastically shrink a table's footprint in a relational database.Could it be real or false?arrow_forwardA select operation in a relational database decreases the size of a table by deleting columns that fulfill certain criteria.Is it correct or incorrect?arrow_forwardA select operation in a relational database decreases the size of a table by removing columns that fulfill given criteria.Is this statement truthful or false?arrow_forward
- In a relational database, a select operation reduces the size of a table by removing columns that meet certain requirements.Is it accurate or inaccurate?arrow_forwardBy filtering out columns that don't meet particular criteria, a select operation may reduce the size of a table in a relational database.Is it the case or not?arrow_forwardAn EMPLOYEES table was added to the JustLee Books database to track employee information. Display a list of each employee’s name, job title, and manager’s name. Use column aliases to clearly identify employee and manager name values. Include all employees in the list and sort by manager name.arrow_forward
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