I've written an article, "Using the Ruby DBI Module," that discusses
using Ruby DBI to write programs that access databases.  The article 
is available here:

     http://www.kitebird.com/articles/


I'd be interested in feedback, especially corrections if there
are errors.

The article follows an earlier one, "Using the Ruby MySQL Module,"
that describes the lower-level module on which the Ruby DBI MySQL
driver is based.  The earlier article is available at the same site.