oracle查询不重复数据

方法一： session select jqbh,cjdbh,sjybh,sjyxmoracle from (select t.jqbh,t.cjdbh,t.sjybh,t.sjyxm,row_number() OVER(PARTITION BY t.sjybh ORDER BY t.jqbh) ds from T_ITMP_TCS_DISPOSAL t where t.sjyxm is not

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