Why were data warehouses created?
A)Numbers and types of operational databases increased as businesses grew.
B)Many companies had information scattered across multiple systems with different formats.
C)Completing reporting requests from numerous operational systems took days or weeks.
D)All of these are correct.

Question

Quizplus · Accepted Answer

Data warehouses evolved and were created because of these business challenges: 1) numbers and types of operational databases increased, 2) many companies had information scattered across multiple systems with different file types, and 3) completing reporting requests from numerous operational systems took days or weeks.

Why Were Data Warehouses Created