# Not able to Calculate Running Total in sql server

my table looks like as bellow

ID             Person          bal     N0          running  Sum
1                  1                 5         1                5
2                   2                5          2              10
3                   2                5          3              10
4                   3                10        4               20
5                   4                6          5                26
6                   4                6          6                26
7                    5                1         7                27

here i want Running total based on distinct value   Person column   and bal column  value  sum

if person column  value is reapting at that at that time bal value should be added to running total
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Billing EngineerCommented:
check out this script:
``````declare @t table (id int , person int, bal int, no int )
insert into @t values(1,                  1                , 5        , 1      )
insert into @t values(2,                   2               , 5        ,  2     )
insert into @t values(3,                   2               , 5        ,  3      )
insert into @t values(4,                   3               , 10       , 4        )
insert into @t values(5,                   4               , 6        ,  5        )
insert into @t values(6,                   4               , 6        ,  6         )
insert into @t values(7,                    5              ,  1       ,  7          )

select t.*
, (select sum(b.bal)
from @t b
where b.id <= t.id
and not exists(select null from @t o
where o.person = b.person
and o.bal = b.bal
and o.id < b.id
)
) running
from @t t
``````

output:
``````id          person      bal         no          running
----------- ----------- ----------- ----------- -----------
1           1           5           1           5
2           2           5           2           10
3           2           5           3           10
4           3           10          4           20
5           4           6           5           26
6           4           6           6           26
7           5           1           7           27
``````
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Author Commented:
If i have to calculate similarly for 3 more coulumns based on the person column ,

should i repeat the  subqurey  3 times or any other bettter way
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freelancerCommented:
are you using MS SQL 2012 or later?
0
Author Commented:
2008
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Author Commented:
ID             Person          bal     N0          running  Sum     Fine             fine running sum

1                  1                 5         1                5                          2                      2
2                   2                5          2              10                         3                      5
3                   2                5          3              10                         3                      5
4                   3                10        4               20                        1                      6
5                   4                6          5                26                       2                      8
6                   4                6          6                26                       2                      8
7                    5                1         7                27                       5                      13
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Billing EngineerCommented:
>should i repeat the  subqurey  3 times or any other bettter way
you will have to repear the subquery 3 times when using this technique.
with a CTE expression, we could do intermediate steps (to perform the "distinct" in a CTE expression first), but still we will need a subquery for each expression./
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