Logical Database Design - Practice Test

(A) no primary key attribute may be null.

(B) no primary key can be composite.

(C) no primary key may be unique.

(D) no primary key may be equal to a value in a foreign key.

(A) no primary key attribute may be null.

(A) One relation is created.

(B) Two relations are created.

(C) Three relations are created.

(D) Four relations are created.

(B) Two relations are created.

(A) First normal form

(B) Second normal form

(C) Third normal form

(D) Fourth normal form

(B) Second normal form

(A) Any attribute

(B) The same thing as a primary key

(C) An attribute that serves as the primary key of another relation

(D) An attribute that serves no purpose

(C) An attribute that serves as the primary key of another relation

(A) A functional dependency between two or more key attributes.

(B) A functional dependency between two or more nonkey attributes.

(C) A relation that is in first normal form.

(D) A relation that is in second normal form.

(B) A functional dependency between two or more nonkey attributes.

Logical Database Design - Study Mode