I would like to agregate several rows :
I would like
C1 C2 C3
---------- ---- ----
VINET 5 10
VINET 5 11
VINET 5 12
TOMSP 5 13
TOMSP 5 13
TOMSP 6 18
TOMSP 7 19
TOMSP 6 19
TOMSP 7 18
and to obtain
C1 C2 C3
---------- ---- ----
VINET 5 10
TOMSP 5 13
for the result
In fact, I would like to obtain 1 single row for the same couple (C1,C2)
what should be the request ?