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刪除表中重復(fù)記錄大于兩條保存兩條:delete from t_Cht_clm_reg F where F.case_id in ( select T.case_id from ( select B.* from (select e.* , row_number() over (partition by e.notice_id order by e.case_id desc) rn from t_Cht_clm_reg e) B where B.notice_id in( select A.notice_id
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