Order by problem.......how to Ascending order by date from the following query

Question

hi
i have following query to show the monthly sales after summing up monthly sales total but i have facing a problem this query is not properly perform order by clause according to the months like jan,feb,mar etc... please tell me where i made mistake
SELECT     CashName AS AccountName, LEFT(DATENAME(month, CashDate), 3) + ' - ' + DATENAME(year, CashDate) AS Months, SUM(Total) AS NetSales
FROM         dbo.CashSales
GROUP BY LEFT(DATENAME(month, CashDate), 3) + ' - ' + DATENAME(year, CashDate), CashName

Answer 1

Select AccountName, Months, NetSales from
(SELECT CashName AS AccountName, LEFT(DATENAME(month, CashDate), 3) + ' - ' + DATENAME(year, CashDate) AS Months, SUM(Total) AS NetSales,
DATEADD(month, DATEDIFF(month, 0, CashDate), 0) as dt
FROM dbo.CashSales
GROUP BY LEFT(DATENAME(month, CashDate), 3) + ' - ' + DATENAME(year, CashDate), CashName, DATEADD(month, DATEDIFF(month, 0, CashDate), 0)
t
Order By dt