ALTER TABLE ppsnepl.epl_ndf_update_file ADD (
  CONSTRAINT pkndfupdatefile
  PRIMARY KEY
  (ndf_update_file_id)
  USING INDEX ppsnepl.pkndfupdatefile
  ENABLE VALIDATE);

ALTER TABLE ppsnepl.epl_status ADD (
  CONSTRAINT pkstatus
  PRIMARY KEY
  (status_id)
  USING INDEX ppsnepl.pkstatus
  ENABLE VALIDATE);

ALTER TABLE ppsnepl.epl_ndf_update_file ADD (
  CONSTRAINT fk_ndfupdatefile_status
  FOREIGN KEY (status_id_fk)
  REFERENCES ppsnepl.epl_status (status_id));