I have a MySQL member table, with a DOB field which stores all members\' dates of birth in DATE format (Notice: it has the \"Year\" pa
member
DOB
DATE
There are a number of options, I would first try to transform by number of years between current year and row's year (i.e. Add their age).
Another option is day number within the year (but then you have still to worry about the rollover arithmetic or modulo).