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

Question

Quizplus · Accepted Answer

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

Identify the Statement Below That Is False with Regards to Basic