Between [Forms]![istatistlik]![ilk_tarih] And [[Forms]![istatistlik]![son_tarih] Or ([Forms]![istatistlik]![ilk_tarih] Is Null And [[Forms]![istatistlik]![son_tarih] Is Null)
kodu ile değiştirerek deneyiniz.
Between [Forms]![istatistlik]![ilk_tarih] And [[Forms]![istatistlik]![son_tarih] Or ([Forms]![istatistlik]![ilk_tarih] Is Null And [[Forms]![istatistlik]![son_tarih] Is Null)