Calculating value using previous value of a row in T-SQL

Question

I got following table and want to calculate value of Column2 on each row using the value of the same column (Column2) from the previous row in a sql without using cursor or

Answer 1

Here is an example using ROW_NUMBER() if the Id's aren't necessarily in order:

;with DataRaw as (
    select 1 as Id, '01/01/11' as Date, 5 as Column1 union
    select 2 as Id, '02/01/11' as Date, 2 as Column1 union
    select 4 as Id, '03/01/11' as Date, 3 as Column1
),
Data as (
    select RowId = ROW_NUMBER() over (order by Id), Id, Date, Column1 from DataRaw
),
Data2 as (
    select
        RowId, id, Date, Column1, Column1 as Column2
    from
        Data d
    where
        RowId = 1

    union all

    select
        d1.RowId, d1.id, d1.Date, d1.Column1, (1+d1.column1)*(1+d2.column2) as column2
    from
        Data d1
    cross join
        Data2 d2
    where
        d2.RowId + 1 = d1.RowId
)
select
    Id, Date, Column1, Column2
from
    Data2