What code did you try? Please share the code and the related SAS log output for review/feedback. The SAS support http://support.sas.com/ has SAS-hosted documentation on SAS/Access for Relational Databases, with specific reference to Teradata -- found with a Google advanced search argument, such as:
access teradata export site:sas.com
Also, there are considerations about your SAS version, OS platform, and other related SAS processing (remote/local) environment.