how to cal a datetime colum with int values

Question

Dear all,

 

i have a procedure like bellow,

CREATE PROC USP_ABC

@month int,

@year int ,

as

begin 

select * from tbl

where 

(@month=0 or (SELECT DATEPART(MM, DOJ) FROM dbo.tbl_param_employee_master as month)= @month)and
(@year=0 or (SELECT DATEPART(yy, DOJ) FROM dbo.tbl_param_employee_master as year)= @year)
END 

 

 DOJ Date.

here DOJ datatype is date 

so please suggest me how to call this query