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Data Models into Database Designs

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
Default value
Data constraints

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

False
True

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Data Models into Database Designs
In a 1:1 relationship, the primary key placement is arbitrary.

False
True

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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
A domain constraint
An intrarelation constraint
A range constraint

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Data Models into Database Designs
Which is not true about surrogate keys?

They have meaning to the user.
They are short.
They are numeric.
They are fixed.

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Data Models into Database Designs
Which of the following situation requires the use of ID-dependent entities?

Multivalued attributes only
All of these
Archetype/instance relationships only
Association relationships only

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