In a relational database model,when a primary key for one table appears in another table,it is called a _____ key.
A)secondary
B)foreign
C)serial
D)domain

Question

Quizplus · Accepted Answer

When a primary key for one table appears in another table, it is called a foreign key. This is because the primary key is used to establish a relationship between the two tables, and is thus "foreign" to the second table. Secondary keys are typically used as alternate or additional keys within a single table. Serial keys are a type of primary key that auto-increments with each new record. Domain keys are not a commonly used term in relational database design.

In a Relational Database Model,when a Primary Key for One