Obsidian/Recognition/Work Related/1.업무메모/2022.04/2022-04-04.md

-- 자료생성 INSERT INTO TH_VHF_202203 SELECT CALL_MMSI , '.', call_rs, result_lon, result_lat, result_dt FROM TB_VHFPOLLING_LOG_202203 WHERE 1=1 AND result_lat IS NOT NULL;

-- rsid 갱신 (rsid, bsid 매칭 안되면 '.') UPDATE TH_VHF_202203 a SET bsid = nvl((SELECT bsid FROM tmp_bsid WHERE rsid = a.rsid), '.') ;

-- bsid 매칭 확인 SELECT (SELECT bsid FROM tmp_bsid WHERE rsid = a.rsid) AS bsid_cnv, a.* FROM TH_VHF_202203 a ;