A recursive foreign key is a foreign key in a relation that references the primary key value of the same relation.

Question

Quizplus · Accepted Answer

This is a true statement. A common example of a recursive foreign key is a "parent_id" column in a table that represents a hierarchical structure, such as a directory tree. The "parent_id" column references the "id" column of the same table, indicating the parent-child relationship between rows in the table.

A Recursive Foreign Key Is a Foreign Key in a Relation