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Data Models into Database Designs

Data Models into Database Designs
Each entity is represented as a(n):

file.
attribute.
tuple.
table.

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Data Models into Database Designs
The terms alternate key and candidate key mean the same thing.

True
False

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Data Models into Database Designs
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?

MUST NOT
MUST COVER
None of these
Both of the above

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Data Models into Database Designs
When the parent entity is required, a new parent row can always be inserted.

False
True

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Data Models into Database Designs
The identifier of an entity will become the ________ of the new table.

main attribute
primary key
foreign key
identity key

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Data Models into Database Designs
Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values?

A domain constraint
An intrarelation constraint
An interrelation constraint
A range constraint

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