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Introduction to Database System

Introduction to Database System
In SQL, which command is used to add new rows to a table?

INSERT
APPEND
ALTER TABLE
ADD ROW

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Introduction to Database System
Database applications are seldom intended for use by a single user.

False
True

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Introduction to Database System
A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?

Master file
Specialized file
Update file
Log file

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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.
B →
C is a determinant.
A →

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Introduction to Database System
A form can be used to

format printed output
modify records
None of these
delete records
All of these

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Introduction to Database System
A subtype entity is a special case of another entity called a supertype entity.

False
True

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