When we consider data in the data warehouse to be time variant, we mean:
A) that the time of storage varies.
B) data in the warehouse contain a time dimension so that they may be used to study trends and changes.
C) that there is a time delay between when data are posted and when we report on the data.
D) that time is relative.

Question

Quizplus · Accepted Answer

Data warehouses are designed to store historical data with a time dimension, allowing for analysis of trends and changes over time.

When We Consider Data in the Data Warehouse to Be