Adding column values

Question

Hi all,
I have a requirement which looks like below.
my table looks like this.
id value
1 6
2 10
3 14
4 8
5 9
6 20
now i need output in the below format.
id value
1 6
2 16
3 30
4 38
5 47
6 67
please help.

Answer 1

The analytic SUM function will fo that. Somethign like:
SQL > with t as (
  2     select 1 id, 6 value from dual union all
  3     select 2, 10 from dual union all
  4     select 3, 14 from dual union all
  5     select 4, 8 from dual union all
  6     select 5, 9 from dual union all
  7     select 6, 20 from dual)
  8  select id, sum(value) over(order by id) running_sum
  9  from t;
        ID RUNNING_SUM
         1           6
         2          16
         3          30
         4          38
         5          47
         6          67John