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Data Models into Database Designs

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

primary key
identity key
main attribute
foreign key

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

Four
Two
Six
Three

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Data Models into Database Designs
A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

surrogate key.
foreign key.
composite key.
primary key.

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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
Cascading updates refers to child rows being automatically deleted when a parent row is deleted.

False
True

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