Hi all



Suppose i have a table with this data




codeVet

Year_Inv

nro_inv

type_inv


000

23

63509

G


046

23

71490

G


046

23

71490

H


046

23

75569

G


046

23

75978

G


046

23

76078

G



With Sql i would get :



The nro Invoice for every CodeVet_vet excluding the nro_inv the have two or
more row (in this case the nro_inv 23-71490) ; so the result that i would
need, is



CodeVet Nro_inv

000 1

046 3



Thanks in advance

Gio






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