No. Questions TRUE / FALSE 1. A data model is usually graphical. Database designers determine the data and information that yield the required understanding of the entire business. 2. 3. Business rules must be rendered in writing.
No. Questions TRUE / FALSE 1. A data model is usually graphical. Database designers determine the data and information that yield the required understanding of the entire business. 2. 3. Business rules must be rendered in writing.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Determine whether the following statement is TRUE / FALSE

Transcribed Image Text:No.
Questions
TRUE / FALSE
1.
A data model is usually graphical.
2.
Database designers determine the data and information that
yield the required understanding of the entire business.
3.
Business rules must be rendered in writing.
A disadvantage of the relational database management
system (RDBMS) is its inability to hide the complexities of
the relational model from the user
4.
5.
Each row in the relational table is known as an entity
instance or entity occurrence in the ER model.
6.
In an SQL-based relational database, rows in different
tables are related based on common values in common
attributes.
7.
M:N relationships are not appropriate in a relational model.
In Chen notation, entities and relationships have to be
oriented horizontally; not vertically.
8.
9.
Today, most relational database products can be classified
as object/relational.
10.
The network model has structural level dependence.
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