One common design problem when designing a database from existing data is the presence of missing values, called blank values, in received data.

Needing to using more complicated SQL in database applications is a(n) ________ of normalization.

A. advantage

B. disadvantage

C. either an advantage or disadvantage

D. neither an advantage nor disadvantage

Eliminating modification anomalies is a(n) ________ of normalization.

A. advantage

B. disadvantage

C. either an advantage or disadvantage

D. neither an advantage nor disadvantage

Multivalued dependencies should ________ be eliminated.

A. always

B. commonly

C. seldom

D. never

When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:

A. first step.

B. second step.

C. third step.

D. fourth step.