1,在user_sdo_geom_metadata表中插入或者修改需要修改表的名稱，表中的geometry欄位名稱和srid。具體可參考該表的欄位。

INSERT INTO USER_SDO_GEOM_METADATA (table_name,column_name,DimInfo,srid)
VALUES (UPPER('TB_REALTIME_FIREDISRECORD_T'), UPPER('COORDINATES'),
MDSYS.SDO_DIM_ARRAY(
MDSYS.SDO_DIM_ELEMENT('X',114.877478378889,119.644269545556,0.005),
MDSYS.SDO_DIM_ELEMENT('Y',29.395623565556,34.655112621111,0.005)
),
8307);

2，在修改欄位的srid之前，需要刪除該欄位上得空間索引：

drop index TB_PG_TOWERINFO_STATIONMAP_SPX;

3，使用遊標遍歷表中的欄位，修改geometry欄位的srid的值：

declare
 geo sdo_geometry;
 cursor pointer is
   select T.STATIONMAP , T.TOWERID from DMSDKY.TB_PG_TOWERINFO t;
   p pointer%rowtype;
   begin
    for p in pointer loop
     geo := P.STATIONMAP;
     if geo is not null then
     if geo.sdo_srid is null then
      geo.sdo_srid := 8307;
      update  DMSDKY.TB_PG_TOWERINFO t set T.STATIONMAP = geo where T.TOWERID = P.TOWERID;
      COMMIT;
    end if;
    end if;
    end loop;
end;

4，修改完之後再重新建立欄位上得索引，注意如果欄位中仍含有未修改的欄位值，則會出現ora-13365錯誤

create index TB_PG_TOWERINFO_STATIONMAP_SPX on TB_PG_TOWERINFO t (T.STATIONMAP ) indextype is mdsys.spatial_index;