There's a new chapter of the Ruport book available on the web site. This update adds a chapter on the use of Ruport::Query. Using the cheatsheet format, it explains the configuration and use of Ruport::Query to interface with Ruby DBI for data collection (or to process any SQL queries).
This is the last of the planned cheatsheets, so you might not see much new content on the book site for a while, as we'll be taking the time to write the central narrative.
The new chapter is available at http://ruportbook.com/query.html.