TeraData Sql to add months in timestamp

Applications Programming
1

Hi ,
In teradata - how to add timestamp column with Varchar column values

[SEL 
PURCHASE_DATE,
WARRANTY,
Expiration_Date
FROM PRODUCT TABLE ]

Output :

[PUR_DATE(Timestamp)  WARRANTY(Varchar)   Expi_Date(Timestamp)
5/21/2012 14:00:00            24                      ?? }

In Exp_Date column it should add both 5/21/2012 14:00:00 and 24 ---> 5/21/2014 14:00:00

Please guide me on this .
Thanks

2

Check ADD_MONTHS function or TIMESTAMP � INTERVAL 'n' MONTH