Q. 32 A prime attribute of a relation scheme R is an attribute that appears
(A) in all candidate keys of R.
(B) in some candidate key of R
(C) in a foreign key of R
(D) only in the primary key of R
Answer: (B)
Explanation:
Q. 32 A prime attribute of a relation scheme R is an attribute that appears
(A) in all candidate keys of R.
(B) in some candidate key of R
(C) in a foreign key of R
(D) only in the primary key of R
Answer: (B)
Explanation: