AGE(Date1, Date2)
Numeric Expression
Calculates and returns a numeric age based on a birthdate (Date1) and a reference date (Date2).
Arguments must be either QDS full date variables; Automatic Variables computed using DATEYMD(), or Automatic Variables of type Today’s Date.
Arguments may not be string expressions such as dates entered directly into function (e.g., AGE(10/17/1991,TODAY) or Automatic Variable string expressions (e.g., LONGDATE(TODAY)).
Examples:
AGE(DOB, TODAY)
AGE(DOB, INTERVIEW_DATE)