Hi, I'm learning sql 2008/r2 code and I' lost with this :I have a Sql view that shows me billing information and I need to group by BillNumber and Xrate (USD and MXN) and TaxCode (116,130,140) and I don't know how can I do, please help me, this is the code :SELECT faknr AS BillNumber, fakdat AS BillDate, artcode AS ItemCode, oms45 AS ItemDescription, esr_aantal AS ItemQuantity, prijs_n AS PriceNet, vvp AS StandardCost, pr_bedr AS AmountWithTax, ordernr AS OrderNumber, verzdebnr AS DebotNumber, koers AS XRate, bdr_ev_ed_val AS AmountNet, bdr_vat_val AS TaxPercent, docnumber AS DocumentID, res_id AS SalesRep, serial_number AS LotNumber, btw_code AS TaxCode1, TaxCode2, TaxCode3, TaxBasis2, TaxBasis3, TaxAmount1, TaxAmount2, TaxAmount3, syscreated, syscreatorFROM dbo.frhsrgWHERE (TaxAmount2 > 0)GROUP BY faknr, fakdat, artcode, oms45, esr_aantal, prijs_n, vvp, pr_bedr, ordernr, verzdebnr, koers, bdr_ev_ed_val, bdr_vat_val, docnumber, res_id, serial_number, btw_code, TaxCode2, TaxCode3, TaxBasis2, TaxBasis3, TaxAmount1, TaxAmount2, TaxAmount3, syscreated, syscreator