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Data Models into Database Designs

Data Models into Database Designs
Each entity is represented as a(n):

table.
file.
attribute.
tuple.

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

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

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

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

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Data Models into Database Designs
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?

None of these
MUST NOT
MUST COVER
Both of the above

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

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

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