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Data Models into Database Designs

Data Models into Database Designs
When the child entity is required, we are restricted from creating a new parent row without also creating a corresponding child row at the same time.

True
False

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

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

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Data Models into Database Designs
For every relationship, there are six possible sets of minimum cardinalities.

True
False

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

Six
Three
Two
Four

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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 be immediately filled with a monetary value of $10,000?

Default value
Data constraints
Null status
Data type

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

identity key
main attribute
foreign key
primary key

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