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相似记录中查找出最新的一条记录
SELECT a* FROM amj_aged_nursing_cost a WHERE NOT EXISTS( SELECT * FROM amj_aged_nursing_cost b WHERE b.aged_card_num = a.aged_card_num AND b.create_time > a.create_time AND b.id > a相似记录中查找出最新的一条记录
SELECT a* FROM amj_aged_nursing_cost a WHERE NOT EXISTS( SELECT * FROM amj_aged_nursing_cost b WHERE b.aged_card_num = a.aged_card_num AND b.create_time > a.create_time AND b.id > a