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Introduction to Database System

Introduction to Database System
Which of the following indicates the minimum number of entities that must be involved in a relationship?

Maximum cardinality
Minimum cardinality
ERD
Greater Entity Count (GEC)

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

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

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Introduction to Database System
Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time?

report writer
data manipulation language
query language
transaction log
None of these

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Introduction to Database System
In SQL, which command is used to select only one copy of each set of duplicable rows

None of these
SELECT UNIQUE
All of these
SELECT DISTINCT
SELECT DIFFERENT

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Introduction to Database System
Which of the following hardware components is the most important to the operation of a database management system?

high-resolution video display
printer
plotter
high speed, large-capacity disk

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Introduction to Database System
A list in alphabetical order

is in ascending order
None of these
is the result of a sort operation
is in descending order
both (b) and (c)

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