--> keys <-- id : 525||--> fields <-- observaciones (old)  : ||observaciones (new)  : baja temporal 10/08||id_tpsoc (old)  : 4||id_tpsoc (new)  : 7||id_cob (old)  : 5||id_cob (new)  : 10||actividad (old)  : 2;||actividad (new)  : 