How do I increase the table values based the above values.

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SQL-Server-2008R2

Hi ,
please find the below sql server table table .

COL A	Col B
1	1000
2	2000
3	1000
4	2000
5	3000

i want out put like below . it means colb1,colb1+colb2,col1+col2+col3 etc.

COL A	Col B
1	1000
2	3000
3	4000
4	6000
5	9000

Posted 14-Mar-15 1:07am

Raghu425

Updated 14-Mar-15 3:16am

Maciej Los

v3

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[no name] 14-Mar-15 7:38am

What you have tried? so far

2 solutions

Solution 2

You don't want to - because next time to try you will update row 2 to 4000, row 3 to 7000, and so on.
Instead, return a running total column based on a query: Calculating simple running totals in SQL Server[^]

Posted 14-Mar-15 3:21am

OriginalGriff

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Maciej Los · Accepted Answer · 2015-03-14T03:19:00

Solution 1

It is called: running sum[^]

See:
Calculating simple running totals in SQL Server[^]
http://stackoverflow.com/questions/14953294/how-to-get-running-sum-of-a-column-in-sql-server[^]
http://stackoverflow.com/questions/2120544/how-to-get-cumulative-sum[^]

Posted 14-Mar-15 3:19am

Maciej Los