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Logical Database Design

Logical Database Design
A synonym is two or more attributes that have different names but the same meaning.

False
True

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Logical Database Design
If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?

Third normal form
First normal form
Second normal form
Fourth normal form

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Logical Database Design
The entity integrity rule states that:

no primary key may be equal to a value in a foreign key.
no primary key attribute may be null.
no primary key may be unique.
no primary key can be composite.

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Logical Database Design
The primary key in a relation does not need to be underlined.

True
False

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Logical Database Design
A relation has which of the following properties?

Each relation has a unique name.
Each row is not unique.
The order of the columns is significant.
Attributes can have the same name within a given table.

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Logical Database Design
If no multivalued attributes exist in a relation, then the relation is in what normal form?

Second normal form
Fourth normal form
First normal form
Third normal form

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