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Data Models into Database Designs

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

True
False

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Data Models into Database Designs
In a 1:1 relationship, the foreign key is placed in:

either table without specifying parent and child tables.
either the parent table or the child table.
the parent table.
the child table.

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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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Data Models into Database Designs
Which of the following column properties would be used to specify that cells in a column must contain a monetary value that is less than another monetary value in the same row?

Null status
Default value
Data type
Data constraints

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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.

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

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Data Models into Database Designs
Which is not true about surrogate keys?

They are short.
They are fixed.
They are numeric.
They have meaning to the user.

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