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Data Models into Database Designs

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

True
False

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Data Models into Database Designs
Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values?

A domain constraint
A range constraint
An interrelation constraint
An intrarelation constraint

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Data Models into Database Designs
The DBMS allows surrogate keys to be changed.

False
True

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Data Models into Database Designs
A foreign key is:

used to define null status.
a column containing the primary key of another table.
used to define data types.
All of these

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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
Four
Six
Three

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

False
True

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