SQL & PL/SQL

Hi All,

I have seen some solutions from the past for age calculation. But i have one problem.

I need to check whether a person is less than 19 years.

The sql i used was

select months_between(sysdate, to_date(birth_date, 'YYYYMMDD'))/12

I'm using the date where sysdate is 20150412 and birthDate = 19960413

the answer we get is 19.3407 years though this person is not 19 years yet.

How do i get the accurate age?

Thanks in advance