With respect to the definition of data warehouse, which of the following means that data in a data warehouse represents periodic snapshots of the data, such as at the end of each month?
A) nonvolatile
B) time-variant
C) subject-oriented
D) integrated

Question

Quizplus · Accepted Answer

The concept of storing periodic snapshots of data is related to time-variant data, which means that data in the data warehouse changes over time and represents a historical record. This is in contrast to nonvolatile data, which means that once data is loaded into the warehouse, it is not updated or deleted, and integrated data, which means that data from multiple sources is combined into a common format, and subject-oriented data, which means that the data is organized around specific business areas or subjects.

With Respect to the Definition of Data Warehouse, Which of the Following