sql删除重复数据

Posted 2022-10-17 liuxinxin4288

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DELETE FROM city_info
WHERE 1=1
AND admin_id IN ( SELECT * from ( SELECT admin_id FROM city_info GROUP BY admin_id HAVING COUNT(admin_id)>1 ) as A)
AND id NOT IN ( SELECT * from ( SELECT MIN(id) FROM city_info GROUP BY admin_id HAVING COUNT(admin_id)>1 ) as B)

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