Ver originalSELECT OV.Articulo, MAX(OV.Fecha)FROM [Ordenes de Venta] OVLEFT JOIN [Articulos y Materiales] AM ON OV.Articulo = A.ArticuloWHERE AM.Material = 'Azucar' OR OV.Articulo = 'Azucar'GROUP BY OV.Articulo