I just wanted to let you know that there is the enhanced perl modul DBD::Teradata v12.001 available under GNU GPL sinc Dec. 2008. Up to now an ancient version with reduced functionality has been availalbe on cpan.org.
This module can be used to access Teradata directly from a perl program. Using this functionality you can develop applications, automated dataflows, dynamic sql, etc. Details, docu and free download @ http://www.presicient.com/tdatdbd/ Note: "Note that Presicient has discontinued development of and support for Teradata products"