text: --
  -- Impacts of KPI / boolean expressions.
  --
  CREATE TABLE mod_bam_impacts (
    id_impact int NOT NULL,
    impact float NOT NULL,
  
    PRIMARY KEY (id_impact)
  );
  CREATE SEQUENCE mod_bam_impacts_seq
  START WITH 1
  INCREMENT BY 1;
  CREATE TRIGGER mod_bam_impacts_trigger
  BEFORE INSERT ON mod_bam_impacts
  FOR EACH ROW
  BEGIN
    SELECT mod_bam_impacts_seq.nextval INTO :NEW.id_impact FROM dual;
  END;
  /
  