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7th Edition
ISBN: 9781259852183
Author: Paige Baltzan, Amy Phillips
Publisher: McGraw-Hill Education
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Expert Solution & Answer
Chapter 6, Problem 7RQ
Explanation of Solution
Difference between an entity and an attribute:
Entity | Attribute |
Entities represent real world objects that can be identified as independent and unique | Attributes represent the properties of the entities. |
In relational databases, entities become tables... |
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An attribute is a property that describes the nature of an entity.
Create a list of the attributes that you would want to see in an entity identification property.
What is a Derived Attribute and how does it work?
Chapter 6 Solutions
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- What kinds of data would you store in an entity subtype?arrow_forwardThe ______________ model is a simple but highly useful way to organize data into collections of two-dimensional tables called relations.arrow_forwardWhich of the following defines a relationship in which data can have multiple occurrences in each entity? one-to-one one-to-many many-to-many none of the abovearrow_forward
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