SELECT * FROM auth_device_check AND machineInfo = #{machineInfo} AND registerCode = #{registerCode} AND id = #{id} ORDER BY id DESC SELECT * FROM auth_device_check machineInfo = #{machineInfo} LIMIT 1 INSERT INTO auth_device_check (machineInfo, remark, registerCode, createDate) values (#{machineInfo}, #{remark}, #{registerCode}, #{createDate}) UPDATE auth_device_check remark=#{remark}, registerCode=#{registerCode}, createDate=#{createDate}, WHERE machineInfo=#{machineInfo}