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Data Models into Database Designs

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

True
False

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

Null status
Data constraints
Default value
Data type

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

True
False

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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
If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value.

a foreign key
a surrogate key
any alternate key
the primary key

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