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Data Models into Database Designs

Data Models into Database Designs
For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?

Four
Three
Six
Two

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Data Models into Database Designs
Surrogate keys have much meaning for users.

False
True

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Data Models into Database Designs
(STREET ADDRESS, CITY, STATE, ZIP) is an ideal primary key.

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
Both of the above
MUST COVER
None of these

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Data Models into Database Designs
For every relationship, there are six possible referential integrity actions.

False
True

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

True
False

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