Advanced question about pricelist (need to display prices of particular paper formats directly from MS SQL database).
Execute following query in SQL Server Management Studio:
select [format], sum(BlackwhiteImpression) as bw, sum(ReducedColourImpression) as reduced, sum(StandardColourImpression) as color, sum(price) as price
from [Accountings] a
inner join copies c on a.Copy_Id = c.Id
where c.De vice_Id = 5 and c.[Type] <> 3
and c.Finished > '2016-06-10 00:00:00'
group by [format]
Note: Value of c.Finished represents date and time since when the data are selected.