In a data warehouse, information cleansing occurs first during the ETL process and again once the information is in the data warehouse.

Question

Quizplus · Accepted Answer

Information cleansing can occur both during the ETL (Extract, Transform, Load) process to ensure data quality before it enters the data warehouse and again once the data is in the data warehouse to maintain data integrity over time.

In a Data Warehouse, Information Cleansing Occurs First During the ETL