INSERT INTO MDSYS.CS_SRS S
  (CS_NAME, SRID, AUTH_SRID, AUTH_NAME, WKTEXT)
VALUES
  ('Turkish Coordinate System ITRF 39',
   1000004021,
   1000004021,
   'Oracle',
   'PROJCS["ITRF96 / TM39",
    GEOGCS["GCS_ITRF_1996",
        DATUM["D_ITRF_1996",
            SPHEROID["GRS_1980",6378137,298.257222101]],
        PRIMEM["Greenwich",0],
        UNIT["Decimal Degree",0.017453292519943295]],
    PROJECTION["Transverse Mercator"],
    PARAMETER["central_meridian",39],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["Meter",1]]');
commit;

SELECT SDO_CS.VALIDATE_WKT(1000004021) FROM DUAL;