Calculate Days Remaining For User Birthday Countdown

USE [BloodBankManagement]
GO
/****** Object: StoredProcedure [dbo].[sp_DonorBdayEvent] Script Date: 7/8/2016 12:57:20 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[sp_DonorBdayEvent]
AS
BEGIN
--Donor Marriage aniversary
select DonorID,DonorIDValue,Name,DonorMarrAnvDate,DATEDIFF(day,GETDATE(),DonorMarrAnvDate) as RemainingDaysForMar
from dbo.DonorRegister
where ActiveFlag=1 and CONVERT (DATE, DonorMarrAnvDate) between CONVERT (DATE, getdate()) and CONVERT (DATE, getdate()+12)
--Donor Marriage Bday
select DonorID,DonorIDValue,Name,DOB,DATEDIFF(day,GETDATE(),DOB) as RemainingDaysForDOB
from dbo.DonorRegister
where CONVERT (DATE, DOB)=CONVERT (DATE, getdate()) and ActiveFlag=1
END