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Introduction to Database System

Introduction to Database System
The way a particular application views the data from the data base that the application uses is a :

module
relational model
subschema
None of these
schema

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Introduction to Database System
An indexing operation

sorts file using two keys
sorts a file using a single key
establishes an index for a file
None of the listed here

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Introduction to Database System
A recursive relationship is a relationship between an entity and ________ .

itself
a subtype entity
an instance entity
an archetype entity

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Introduction to Database System
In a 1:N relationship, the parent is the entity on the one side of the relationship and the child is the entity on the N side of the relationship.

True
False

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Introduction to Database System
When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.

False
True

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Introduction to Database System
A key is a group of one or more attributes that uniquely identifies a row.

False
True

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