• Used the Teradata 14 supplied image for installing on Amazon's EC2 and followed the TD installation guide.
• No users, no load, no jobs -- nothing happening from the user environment -- the server is in an idle state.

Hello, 
   I tested TO_DATE and TO_NUMBER function in TD 14 Express and I have following results:
SELECT TO_NUMBER ('x', '9999.99');
 Result is NULL value, OK with documentation "If conversion fails, NULL is returned."
SELECT TO_DATE ('x', 'YYYY-MM-DD');