ADD DAYS in Teradata

Using INTERVAL function you can add days to the input date.

Syntax:
SELECT DATE + INTERVAL 'n' DAY;


Example:
SELECT DATE '1998-08-31' + INTERVAL '30' DAY;
09/30/1998

SELECT DATE '2012-01-31' + INTERVAL '30' DAY;
03/01/2012

SELECT DATE '2012-01-31' + INTERVAL '6' DAY;
02/06/2012