Mantenimiento de Artículos select SQL_CALC_FOUND_ROWS A.id as id,A.descripcion as descripcion, A.marca as marca, A.modelo as modelo, A.cantidad as cantidad, (select sum(E.cantidad) from Elementos E where E.id_Articulo=A.id) as cantubi, (select count(E.id) from Elementos E where E.id_Articulo=A.id) as numero,A.imagen as imagen from Articulos A {buscar} {orden} limit {inferior},{superior};