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Introduction to Database System

Introduction to Database System
Each of data files has a _____ that describe the way the data is stored in the file.

Records
Fields
File structure
Database

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Introduction to Database System
A computer file can be best described as

a random collection of data items
an orderly collection of data items
a general collection of data items
a single data item
None of these

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Introduction to Database System
An on-line commercial site such as Amazon.com is an example of a(n) ________ .

multiuser database application
e-commerce database application
single-user database application
data mining database application

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Introduction to Database System
In which of the following is a single-entity instance of one type related to many entity instances of another type?

One-to-One Relationship
One-to-Many Relationship
Composite Relationship
Many-to-Many Relationship

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Introduction to Database System
A computer file contains several records. What does each record contain?

Words
Bytes
Fields
Database

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Introduction to Database System
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

ID-dependent entity
ID-independent entity
Weak entity
Strong entity

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