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일단 테이블 만들기 부터
https://server-engineer.tistory.com/500
SDO_GEOMETRY타입이란
https://hgko1207.github.io/2021/03/16/oracle-1/
USER_SDO_GEOM_METADATA 만들기
https://slideplayer.com/slide/5071576/
https://m.blog.naver.com/jsf3rd/102843822
spatial index만들기