Which of the following features usually applies to data in a data warehouse?
A) New data supersede old data
B) New data are appended to old data
C) Update anomalies are common
D) Deletion anomalies are common

Question

Quizplus · Accepted Answer

One of the main characteristics of data in a data warehouse is that new data is appended to old data rather than replacing it. This allows for historical analysis and trend identification. Update and deletion anomalies are usually minimized or eliminated through the use of standardized and normalized data structures.

Which of the Following Features Usually Applies to Data in a Data