Key Difference between ETL and ELT - WriteUpCafe.com
In the dynamic landscape of data integration, two methodologies take center stage--ETL (Extract, Transform, Load) and ELT (Extract, Load, Transform). While both serve the common goal of moving and transforming data, their operational sequences and implications differ significantly. Let's delve into the key distinctions between ETL and ELT to illuminate their unique roles in the data integration ecosystem.
Sequential Process: ETL follows a sequential process where data is first extracted from source systems, then transformed according to predefined rules, and finally loaded into the target data warehouse.