[轉]利用Oracle的row_number() over函數消除重複的記錄

1.select d.id,d.outer_code from  dict_depts_source d order by outer_code(查看重複數據) 2.select d.id,d.outer_code,row_number() over(partition by outer_code order by outer_code) row_flag from  dict_depts_sou

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