Note in the comments here people have used ELT instead of ETL a few times. It's not a typo, doing the "load" before the "transform" specifically refers to copy

Note in the comments here people have used ELT instead of ETL a few times. It's not a typo, doing the "load" before the "transform" specifically refers to copying the data into the database without changing it, then doing the transformation within the database (probably with SQL).