____ is the process of copying data from the transactional databases in preparation for loading it into the data warehouse.
A) Data extraction
B) Data manipulation
C) Data cleaning
D) Data transformation
E) Data loading

Question

Quizplus · Accepted Answer

Data extraction is the process of extracting or copying data from various sources, such as transactional databases, and transforming it into a format suitable for further analysis and processing in a data warehouse. This involves identifying the relevant data, filtering, and validating it to ensure that it is suitable for loading into the data warehouse.

____ Is the Process of Copying Data from the Transactional