SQL Problem

[B.Hauser]

Hallo,

versuch's mal damit:

with a as (select Produkt, Min(LfdNr) 
as LfdNr1
             from MyTable
           Group By Produkt),
     b as (select x.Produkt, Min(x.LfdNr)
 as LfdNr2
             from MyTable x join a On a.Produkt = x.Produkt and x.lfdNr > lfdNr1
           Group By x.Produkt),
     a1 as (Select y.Produkt, y.lfdNr, y.Preis as Preis1              from MyTable y join a on y.Produkt = a.Produkt and lfdNr = lfdNr1),
    b1 as (Select z.Produkt, z.lfdNr, z.Preis as Preis2
              from MyTable z join b on z.Produkt = b.Produkt and lfdNr = LfdNr2)
select a1.Produkt, Preis1, Preis2
from a1 left outer join b1 using (Produkt)
Order By Produkt; 

Birgitta