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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
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
A primary key should be defined as:

Either of the above can be used.
None of these
NOT NULL.
NULL.

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Data Models into Database Designs
The identifier of an entity will become the ________ of the new table.

main attribute
foreign key
primary key
identity key

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

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

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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?

Default value
Data constraints
Null status
Data type

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