AddMonths

Syntax

integer AddMonths (integer datevalue, integer months)

Add months to a date.

The resultant date.

For purposes of this function, the addition of a month involves incrementing the month while maintaining the same cardinal day of the month. In cases where this would result in a non-valid date (e.g., adding a month to May 31, thus producing June 31), the built-in setting add month compensation is referred to. A value of up sets the date to the 1st of the next month (July 1), while a value of down rolls back the date to the nearest earlier valid one (June 30). A value of error causes a diagnostic to be issued.
This function is equivalent to the plusm function as it can be used by the tester in a “#” expression.
To subtract months, use a negative value for the months parameter.