select top 1
EvrId,
TimeStamp,
Date,
SUM(BnhTnkMik1) as Quantity,
(select TnkCode from Tanklar where TnkId=BnhTnkId) as Tank,
FuelCode,
InvoiceNo
from
Evrak
join Hareket on (BnhEvrId=EvrId)
join Stoklar on (StokId=BnhStok)
where EvrTip=14 and EvrStatu='A'
GROUP BY
EvrId,
TimeStamp,
Date,
(select TnkCode from Tanklar where TnkId=BnhTnkId),
FuelCode,
InvoiceNo