How It Works
ELT (Extract, Load, Transform)
The same steps as ETL in a different order: load raw data into the warehouse first, then transform it there. It became popular because modern cloud warehouses are powerful enough to do the reshaping themselves, and keeping raw data lets you redo transformations later.
Origin · no single documented coiner
Emerged in the 2010s alongside cloud data warehouses such as Amazon Redshift, Google BigQuery and Snowflake. It is an industry term that spread through vendors and practitioners, not a single author.
No single primary source link for this term.