Wie wär's damit:
BirgittaPHP-Code:
Select KundeNr,
Sum(Case When Jahr = 2005 then Umsatz else 0 End) as Ums2005,
Sum(Case When Jahr = 2006 then Umsatz else 0 End) as Ums2006,
Sum(Case When Jahr = 2007 then Umsatz else 0 End) as Ums2007
From MyFile
Where ....
Group By KundeNr;
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