Automatci value change after 90 days

Question

Hear is my code  want to know how will  IsActive ='Y' Automatic After 90 Days

 

 

SELECT * FROM FacultyRelievingDetails

WHERE ApplyDate >= DATEADD(DAY, -90, ApplyDate) And FacultyId='LCVD-2003396' AND CollegeId=387 AND IsRelieved='Y'

 

 

please Help Me