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Data Models into Database Designs

Data Models into Database Designs
An ideal primary key is short, numeric and seldom changing.

True
False

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

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
When the parent entity is required, a new parent row can always be inserted.

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?

Two
Six
Three
Four

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Data Models into Database Designs
Intersection tables are ID-dependent on both their parent tables.

True
False

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