Código SQL [-]Select CL.*, (Select Max(ID_FACTURA) from CLIENTES CL2 where CL2.ID_CLIENTE = CL.ID_CLIENTE) as MAX_FAC from CLIENTES CL where ID_FACTURA = MAX_FAC
Select CL.*, (Select Max(ID_FACTURA) from CLIENTES CL2 where CL2.ID_CLIENTE = CL.ID_CLIENTE) as MAX_FAC from CLIENTES CL where ID_FACTURA = MAX_FAC