Question

Which of the statements regarding a data warehouse is incorrect?

A. It is a centralized collection of firm-wide data
B. The purpose of a data warehouse is to provide a rich data set for management to identify patterns and to examine trends of business events.
C. Includes data for the current fiscal year only
D. The data in a data warehouse is pulled from each of the operational databases periodically

Answer 1

The statements regarding a data warehouse which incorrect is `` The data in a data warehouse is pulled from each of the operational databases periodically``

The answer is option ⇒D

Step-by-step explanation:

The statement D is incorrect. A data warehouse does not pull data periodically from each of the operational databases. Instead, it uses a process called ETL (Extract, Transform, Load) to extract data from various sources, transform it into a unified format, and load it into the data warehouse.

A data warehouse is a centralized collection of firm-wide data (A). Its purpose is to provide a rich data set for management to identify patterns and examine trends of business events (B). However, it includes data from multiple periods, not just the current fiscal year (C).

The answer is option ⇒D