If the parent is required,then a new child row must be created with a valid foreign key value.

Name: If the parent is required,then a new child row must be created with a valid foreign key value.
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Quizplus · Accepted Answer

If a parent is required, it means that every child row must have a valid foreign key value that corresponds to a parent row. Therefore, if a child is added without a valid foreign key value, a new parent row must be created in order to generate a valid foreign key value for the child row.

If the Parent Is Required,then a New Child Row Must