查找出这三个字段重复的数据只保留一条，其余的全部删除
sql语句：
DELETE FROM jxkh_evaluation_detail WHERE id NOT IN (SELECT id from ( SELECT min(id) AS id FROM jxkh_evaluation_detail GROUP BY project_id, lib_item_id,obj_id)a)
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查找出这三个字段重复的数据只保留一条，其余的全部删除
sql语句：
DELETE FROM jxkh_evaluation_detail WHERE id NOT IN (SELECT id from ( SELECT min(id) AS id FROM jxkh_evaluation_detail GROUP BY project_id, lib_item_id,obj_id)a)
相关文章：