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Introduction to Database System

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

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

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Introduction to Database System
Batch processing is appropriate if

a large computer system is available
only a few transactions are involved
only a small computer system is available
All of these
None of these

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

Maximum cardinality
ERD
Minimum cardinality
Greater Entity Count (GEC)

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Introduction to Database System
To have a file hold a list, it is necessary to

decide which fields will be used as sort or index keys
All of the listed here
identify the records in the list
identify the name, width and type of the fields of each record.

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Introduction to Database System
Entity instances are associated by relationship classes.

True
False

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Introduction to Database System
In SQL, which command is used to select data in rows and column from one or more tables?

SELECT
BROWSE
CHOOSE
None of these
LIST

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