Data warehouses keep the same data for long periods of time so the probability that the sources contain "dirty data" is low.

Question

Quizplus · Accepted Answer

Data warehouses often contain data from multiple sources, and the data may not have undergone thorough data quality checks or cleaning processes. This increases the probability that the data may contain errors, inconsistencies, or other types of "dirty data." As such, data warehouses typically require ongoing data management and maintenance to ensure the accuracy, completeness, and consistency of the data.

Data Warehouses Keep the Same Data for Long Periods of Time