Which statement below is false regarding the basic requirements of the relational data model?
A) Every column in a row must be single-valued.
B) All non-key attributes in a table should describe a characteristic about the object identified by the primary key.
C) Foreign keys, if not null, must have values that correspond to the value of a primary key in another table.
D) Primary keys can be null.

Question

Quizplus · Accepted Answer

Primary keys cannot be null as they are used to uniquely identify each row in a table.

Which Statement Below Is False Regarding the Basic Requirements of the Relational