Loading data into a data warehouse involves:
A) appending new rows to the tables in the warehouse.
B) updating existing rows with new data.
C) purging data that have become obsolete or were incorrectly loaded.
D) all of the above.

Question

Quizplus · Accepted Answer

Loading data into a data warehouse involves appending new rows to the tables in the warehouse, updating existing rows with new data, and purging data that have become obsolete or were incorrectly loaded. Therefore, all of the above choices are correct.

Loading Data into a Data Warehouse Involves