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Introduction to Database System

Introduction to Database System
An entity class is a collection of entities and is described by the structure of the entities in that class.

False
True

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Introduction to Database System
Sophisticated report generators can

perform arithmetic operations
selectively retrieve and print portions of a list
All of the listed here
print row-oriented reports

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Introduction to Database System
If attributes A and B determine attribute C, then it is also true that:

(A,B) is a composite determinant.
A →
C is a determinant.
B →

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Introduction to Database System
In SQL, which command(s) is(are) used to create a synonym for a schema object?

CREATE SCHEMA
CREATE SAME
CREATE SYNONYM
All of the listed here

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

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

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Introduction to Database System
The data-base environment has all of the following components except:

data-base administrator
separate files
users
data base
None of these

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