数据库查询，在orcl中没有报错，为啥，在程序运行时出错，求大神指导，没发现有重复的列
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[待解决问题]
select DISTINCT WA.NF AS YEAR ,WA.STATIONCODE AS CODE_STATION, WA.STATIONNAME AS STATIONNAME, WA.SECTION_CODE AS CODE_SECTION,WA.SECTION_NAME AS SECTIONNAME,WA.SSHL AS RIVENAME,BA.LAKE_NAME AS LAKENAME,WA.REGIONNAME AS REGIONNAME, WA.SECTIONLEVEL AS CODE_WATERLEVEL,WA.LONGITUDE AS LONGITDE,WA.LATITUDE AS LATITUDE from t_base_water_riversection WA lefter JOIN T_BASE_WATER_LAKEINFO BA ON WA.STATIONCODE=BA.STATIONCODE where 1=1
表一 ：t_base_water_riversection
表二：T_BASE_WATER_LAKEINFO
