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Data Models into Database Designs

Data Models into Database Designs
Which of the following columns is(are) are required in a table?

An alternate key
A primary key
A surrogate key
A foreign key

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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.

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

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Data Models into Database Designs
An intersection table is required to represent M:N relationships.

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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Data Models into Database Designs
When the parent entity is required and the parent has a surrogate key, update actions can be ignored.

True
False

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Data Models into Database Designs
When transforming an entity-relationship model into a relational database design, each entity is represented as a table.

False
True

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