A classic example of unneeded normalization is when we are dealing with ________.
A)ZIP codes
B)sales orders and line items
C)association patterns
D)multivalued dependencies

Question

Quizplus · Accepted Answer

ZIP codes are a classic example of unneeded normalization because they are often treated as numerical data when, in reality, they are categorical data representing geographical areas. Normalizing ZIP codes (e.g., breaking them down into separate components) usually does not add value for analysis or storage purposes and can complicate queries without providing additional insights.

A Classic Example of Unneeded Normalization Is When We Are