Question

In relation, primary key field is known as field.
(A) referenced
(B) referencing
(C) (A) and (B)
(D) None of these

Answer 1

Answer:

(A) and (B)

hope it is helpful to you

Answer 2

Referenced and referencing is the answer. Option (C) is correct.

Explanation:

• Primary key must satisfy unique and not null condition for sure.
• The attribute id has to be unique, so it can be taken as a primary key.
• The primary key has to be referred in the other relation to form a foreign key in that relation.
• So, a attribute in a relation is a foreign key if the primary key from one relation is used as an attribute in that relation .
• The referenced relation is the one in which the primary key of one relation is used as a normal attribute in another relation.

To Learn More...

1.Which of the following is a false statement? (a) Primary key cannot contain null values. (b) Primary key cannot contain duplicate values. (c) Primary key can be combination of more than one field. (d) Primary key is always numeric field.

https://brainly.in/question/8227267

2.A__________ represent a single data item in a table.

a) row

b) column

c) datatype

d) primary key​

https://brainly.in/question/15318729