Data Warehousing Questions
Data integration in data warehousing refers to the process of combining data from various sources and formats into a unified and consistent format within a data warehouse. It involves extracting, transforming, and loading (ETL) data from different operational systems, databases, and external sources, and then integrating it into a single, comprehensive view. This integration ensures that the data in the data warehouse is accurate, reliable, and easily accessible for analysis and reporting purposes.