What happens during the load step of the ETL process?

In the context of the ETL (extract, transform, and load) process, the load step is the final phase where the previously cleaned and processed data are moved into a centralized data warehouse.

During this stage, the prepared data are integrated into the warehouse, where they join vast amounts of historical data and information collected from various other sources. This centralization allows the data to be effectively organized and prepared for subsequent data analysis, enabling businesses and researchers to derive insights or perform data mining to discover useful patterns.1