Which of the following is false regarding a well-structured relational database?
A)A foreign key cannot be null.
B)A primary key cannot be null.
C)Every column in a row must be single valued.
D)All nonkey attributes in a table must describe a characteristic of the object identified by the primary key.

Question

Quizplus · Accepted Answer

A foreign key can be null, but it cannot have a value that does not exist in the referenced table's primary key.

Which of the Following Is False Regarding a Well-Structured Relational