date_add
Description
Syntax
DATETIME DATE_ADD(DATETIME date, INTERVAL expr type)
Adds a specified time interval to the date.
The date parameter is a valid date expression.
The expr parameter is the interval you want to add.
The type parameter can be the following values: YEAR, MONTH, DAY, HOUR, MINUTE, SECOND
example
mysql> select date_add('2010-11-30 23:59:59', INTERVAL 2 DAY);
+-------------------------------------------------+
| date_add('2010-11-30 23:59:59', INTERVAL 2 DAY) |
+-------------------------------------------------+
| 2010-12-02 23:59:59 |
+-------------------------------------------------+keywords
DATE_ADD,DATE,ADD