Select NVINFrom RECOLTES
Minus
Select R1.NVIN
From RECOLTES R1, RECOLTES R2
Where R1.NVIN <> R2.NVIN and R1.QUANTITE < R2.QUANTITE
Nombre de tuples : 1
Ou bien
Select NVINFrom RECOLTES
Minus
Select R1.NVIN
From RECOLTES R1 JOIN RECOLTES R2 ON (R1.NVIN <> R2.NVIN)
Where R1.QUANTITE < R2.QUANTITE