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Introduction to Database System

Introduction to Database System
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.

False
True

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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?

Minimum cardinality
Maximum cardinality
Greater Entity Count (GEC)
ERD

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Introduction to Database System
The master list of an indexed file

None of these
both (b) and (c)
has a number assigned to each record
contains only a list of keys and record numbers
is sorted in ascending order

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Introduction to Database System
Long-range planning report produced in an MIS are primarily designed for

middle management
lower management
None of these
All of these
top management

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

ADD ROW
ALTER TABLE
APPEND
INSERT

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Introduction to Database System
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

None of these
data field
database
data file
data record

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