text: SET DEFINE OFF;
  ALTER TABLE AFW_21_PLUGN_ARBRE ADD (
    CONSTRAINT AFW_21_PLUGN_ARBRE_CK1
    CHECK (
   (nom_table is not null and
   coln_titre is not null and
   coln_valr is not null and
   coln_id is not null and
   coln_id_parnt is not null
   )
   or
   (nom_table is null and
   coln_titre is null and
   coln_valr is null and
   coln_id is null and
   coln_id_parnt is null)
   )
    ENABLE VALIDATE)
  /
  