これを試してください:
Select Acct,Period,F_year, Sum(isnull(cast(AMT as float),0)) as Amt from dbo.Cos Group By Acct,Period,F_year
プレ>
これを試してください:
Select Acct,Period,F_year, Sum(isnull(cast(AMT as float),0)) as Amt from dbo.Cos Group By Acct,Period,F_year
プレ>