AYMD: Adding or Subtracting Days

How to:

Available Languages: reporting, Maintain

The AYMD function adds days to or subtracts days from a date in year-month-day format. You can convert a date to this format using the CHGDAT or EDIT function.

Syntax: How to Add or Subtract Days to or From a Date 

AYMD(indate, days, output)

where:

indate

I6, I6YMD, I8, I8YYMD

Is the legacy date in year-month-day format. If the date is not valid, the function returns the value 0 (zero).

days

Integer

Is the number of days you are adding to or subtracting from indate. To subtract days, use a negative number.

output

I6, I6YMD, I8, or I8YYMD

Is the name of the field that contains the result, or the format of the output value enclosed in single quotation marks. If indate is a field, output must have the same format.

If the addition or subtraction of days crosses forward or backward into another century, the century digits of the output year are adjusted.

Example: Adding Days to a Date

AYMD adds 35 days to each value in the HIRE_DATE field, and stores the result in AFTER35DAYS: 

TABLE FILE EMPLOYEE
PRINT HIRE_DATE AND COMPUTE
AFTER35DAYS/I6YMD = AYMD(HIRE_DATE, 35, AFTER35DAYS);
BY LAST_NAME BY FIRST_NAME
WHERE DEPARTMENT EQ 'PRODUCTION';
END

The output is:

LAST_NAME        FIRST_NAME  HIRE_DATE  AFTER35DAYS
---------        ----------  ---------  -----------
BANNING          JOHN         82/08/01     82/09/05
IRVING           JOAN         82/01/04     82/02/08
MCKNIGHT         ROGER        82/02/02     82/03/09
ROMANS           ANTHONY      82/07/01     82/08/05
SMITH            RICHARD      82/01/04     82/02/08
STEVENS          ALFRED       80/06/02     80/07/07