Err P : 01select  count(Af.nIdFiltro) as nTotalReg from tArticulo P inner join tMoneda M on P.nIdMoneda=M.nIdMoneda inner join tCategorias Ca on P.nIdCategoria=Ca.nIdCategorias 
inner join tArtiFiltro Af on Af.nIdArticulo=P.nId inner join tFiltros F on F.nIdFiltro=Af.nIdFiltro where P.cEstado='Activo' group by P.nId order by P.nId desc