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Data Models into Database Designs

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 is not true about surrogate keys?

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

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Data Models into Database Designs
A primary key should be defined as:

Either of the above can be used.
None of these
NOT NULL.
NULL.

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Data Models into Database Designs
A foreign key is used to implement relationships between tables.

False
True

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Data Models into Database Designs
For every relationship, how many possible sets of minimum cardinalities are there?

Three
Six
Four
Two

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Data Models into Database Designs
In 1:N relationships, which entity becomes the parent entity is arbitrary.

False
True

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