DECLARE @SalesTbl TABLE (DayCount smallint, Sales money, RunningTotal money)
 
DECLARE @DayCount smallint,
        @Sales money,
        @RunningTotal money
 
SET @RunningTotal = 0
 
DECLARE rt_cursor CURSOR
FOR
SELECT DayCount, Sales
FROM tSales
ORDER BY DayCount
 
OPEN rt_cursor
 
FETCH NEXT FROM rt_cursor INTO @DayCount,@Sales
 
WHILE @@FETCH_STATUS = 0
 BEGIN
 SET @RunningTotal = @RunningTotal + @Sales
 INSERT @SalesTbl VALUES (@DayCount,@Sales,@RunningTotal)
 FETCH NEXT FROM rt_cursor INTO @DayCount,@Sales
 END
 
CLOSE rt_cursor
DEALLOCATE rt_cursor
 
SELECT * FROM @SalesTbl