Logical Database Design - Practice Test

(A) Each row is not unique.

(B) Attributes can have the same name within a given table.

(C) Each relation has a unique name.

(D) The order of the columns is significant.

(C) Each relation has a unique name.

(A) One relation is created.

(B) Two relations are created.

(C) Three relations are created.

(D) Four relations are created.

(D) Four relations are created.

(A) One relation is created.

(B) Two relations are created.

(C) Three relations are created.

(D) Four relations are created.

(A) One relation is created.

(A) The supertype primary key is assigned to each subtype.

(B) The subtype primary key is assigned to each supertype.

(C) There is no link between the supertype/subtype entities.

(D) There is no primary key/foreign key relationship between a supertype/subtype.

(A) The supertype primary key is assigned to each subtype.

(A) two-dimensional tables.

(B) three-dimensional tables.

(C) four-dimensional tables.

(D) five-dimensional tables.

(A) two-dimensional tables.

Logical Database Design - Study Mode