Total sales per month

Question

I think this is common, is it?

If you have a table with SALES {Customer_ID, Price, SmallDateTime date}. How do you report all sales per month?

Answer 1

Another solution is to calculate the first day of the month

Select DateAdd(d,DateDiff(d,0,[Date])-DatePart(d,[Date])+1,0)
    , Sum( Price )
From Sales
Group By DateAdd(d,DateDiff(d,0,[Date])-DatePart(d,[Date])+1,0)