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      CREATE TYPE sdo_geometry AS OBJECT (
                     SDO_GTYPE   NUMBER,  //Ç°Ãæ×Ö·û´®Îª×Ö¶ÎÃû£»ºóÃæ×Ö·û´®Îª×Ö¶ÎÀàÐÍ
                     SDO_SRID    NUMBER,
                     SDO_POINT    SDO_POINT_TYPE,
                     SDO_ELEM_INFO    SDO_ELEM_INFO_ARRAY,
                     SDO_ORDINATES    SDO_ORDINATE_ARRAY);
      ÆäÖÐsdo_geometry AS OBJECT £¬±êʶ¸ÃÀàÐÍΪ¶ÔÏóÀàÐÍ¡£¿ªÊ¼ÎÒÃÇ¿ÉÒÔÏëÏëËüΪArcObjectsÖеÄGeometry¶ÔÏ󣨱¾À´ÒªËصÄshape×Ö¶ÎÖеĶÔÏó¾ÍÊÇGeometry£©£¬¶ø²»ÒªÀí½âËûÊÇÔõôÑù×éÖ¯µÄ¡£ÖÁÓÚ¸ÃÀàÐÍÖеÄSDO_POINT_TYPE¡¢SDO_ELEM_INFO_ARRAY¡¢SDO_ORDINATE_ARRAYÒ²ÊÇOracle Spatial×Ô¶¨ÒåµÄÀàÐÍºÍ sdo_geometry ÊÇÒ»ÑùµÄ¡£
       ÏÖÔÚ¶Ôsdo_geometry ÀàÐÍÖеĸ÷¸ö²ÎÊý¼òµ¥µÄ½éÉÜ£º
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