[olalonde]

For those like me who have no ides what ETL stands for: https://en.wikipedia.org/wiki/Extract,_transform,_load

[thibaut_barrere]

Thanks for pointing that out!

Here is a presentation (slides + video) I gave about a Ruby ETL, for instance. It illustrates the typical use cases I run into.

http://lanyrd.com/2012/rulu/swxtt/