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Data Models into Database Designs

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

main attribute
identity key
primary key
foreign key

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Data Models into Database Designs
All primary keys are required.

False
True

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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?

Both of the above
None of these
MUST NOT
MUST COVER

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Data Models into Database Designs
Which of the following data constraints would be used to specify that the value of a cell in one column must be less than the value of a cell in another column in the same row of the same table?

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

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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?

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

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Data Models into Database Designs
Which of the following column properties would be used to specify that cells in a column must contain a monetary value?

Data type
Null status
Data constraints
Default value

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