There is no need to change Oracle PCTFREE.

Oracle:

CREATE TABLE hanbai
     ( data_date NUMBER(8) NOT NULL,
        mise_no CHAR(6) NOT NULL
      )
PCTFREE 5;

HiRDB:

CREATE TABLE hanbai
     ( data_date NUMBER(8) NOT NULL,
        mise_no CHAR(6) NOT NULL
      )
PCTFREE = 5;