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Introduction to Database System

Introduction to Database System
In SQL, which command is used to create a database user?

ADD USER TO DATABASE
MK USER
CREATE USER
All of the listed here

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Introduction to Database System
An operation that will increase the length of a list is

Insert
Look-up
Modify
All of the listed here

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Introduction to Database System
When using a database management system, the first thing that you must do is to

create a database file
keep a floppy disk in readiness
activate file editor
load the software into your micro¬computer

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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?

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

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Introduction to Database System
Composite identifiers consist of two or more attributes.

False
True

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

True
False

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