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Logical Database Design

Logical Database Design
In a 1:M relationship, the primary key on the one side migrates to the many side to become the foreign key on the many side.

False
True

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Logical Database Design
When mapping a ternary relationship with an associative entity into a relation which of the following is true?

Four relations are created.
Two relations are created.
Three relations are created.
One relation is created.

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Logical Database Design
A candidate key must uniquely identify each row.

False
True

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Logical Database Design
Relations are:

five-dimensional tables.
two-dimensional tables.
three-dimensional tables.
four-dimensional tables.

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Logical Database Design
A null value is assigned when no other value applies.

False
True

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Logical Database Design
A foreign key may be null and still adhere to the referential integrity constraint.

True
False

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