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1.select d.id,d.outer_code from dict_depts_source d order by outer_code(查看重复数据)
2.select d.id,d.outer_code,row_number() over(partition by outer_code order by outer_code) row_flag from dict_depts_source d(标识重复数据)
3.delete from dict_depts_source where id in( 3.select d.id,d.outer_code,row_number() over(partition by outer_code order by outer_code) row_flag from dict_depts_source d(检查删除效果)
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