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Computing a value in a table based on another column

Posted By:      Posted Date: September 28, 2010    Points: 0   Category :Sql Server
 

Hi All,

I have Yearly sales column which has to be calculated based on the date and monthly sales columns. Every month I get a record in a table with the date populated in the Date column and sales for that month in the monthly sales column. Now my task is to calculate the yearly sales for the last 12 months including that month. I am unable to come up with a logic. if my sales for the last 12 months were flat $100, then the yearly sales for the current month should be populated as $1200. 

Hope I made my point clear.

Thanks
Vineesh


vineesh1701


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