Xe "author_ISBN table of books database"In a relational database, every foreign-key value must appear as the primary-key value in a row of another table so the DBMS can ensure that the foreign-key value is valid. This is known as the ________.
A) Rule of Entity Integrity
B) xe "Rule of Referential Integrity"Rule of Referential Integrity
C) Rule of Guaranteed Access
D) None of the above

Question

Quizplus · Accepted Answer

The Rule of Referential Integrity states that every foreign key value must appear as a primary key value in another table in order to ensure that the foreign key value is valid. The other options listed (Rule of Entity Integrity and Rule of Guaranteed Access) do not relate to this specific concept.

Xe "Author_ISBN Table of Books Database"In a Relational Database, Every