SHOW ALL Dates data between two dates; if no row exists for particular date then show zero in all columns

Question

I want to show all dates between two dates when there is any date data missing then its should show zero in val column .

declare @temp table (
id int ident         


        

Answer 1

using a recursive cte with min and max

declare @T table (id int identity(1,1) primary key, dt date not null, val int not null);
insert into @T (dt, val) values 
       ('10/2/2012',1)
     , ('10/3/2012',1)
     , ('10/5/2012',1)
     , ('10/7/2012',2)
     , ('10/9/2012',2)
     , ('10/10/2012',2)
     , ('10/13/2012',2)
     , ('10/15/2012',2);
--select * from @T;
with cte as 
( select min(dt) as dt, max(dt) as mx 
  from @T 
  union all 
  select dateadd(dd, 1, dt), mx 
  from CTE 
  where dt < mx
)
select c.dt, isnull(t.val, 0) as val 
from cte c
left join @T t
on c.dt = t.dt
order by c.dt
option (maxrecursion 0);

dt         val
---------- -----------
2012-10-02 1
2012-10-03 1
2012-10-04 0
2012-10-05 1
2012-10-06 0
2012-10-07 2
2012-10-08 0
2012-10-09 2
2012-10-10 2
2012-10-11 0
2012-10-12 0
2012-10-13 2
2012-10-14 0
2012-10-15 2