How to get cumulative sum

Question

declare  @t table
    (
        id int,
        SomeNumt int
    )

insert into @t
select 1,10
union
select 2,12
union
select 3,3
union
select 4,15
union
select 5,23         


        

Answer 1

For Ex: IF you have a table with two columns one is ID and second is number and wants to find out the cumulative sum.

SELECT ID,Number,SUM(Number)OVER(ORDER BY ID) FROM T