MV_ID, MV_Stat_Code, MV_Create_Time, MV_Data_Time, MV_Power_On_Time, MV_Recent_Down_Time, MV_signal, MV_Fan_Status, MV_Purifier_Status, MV_Fan_Electricity, MV_Purifier_Electricity, MV_Fume_Concentration, MV_Fume_Concentration2, MV_PM, MV_NMHC, MV_Upload SELECT * FROM ( SELECT * FROM fd_t_minutevalue WHERE MV_Stat_Code IS NOT NULL AND MV_Data_Time IS NOT NULL ORDER BY MV_Data_Time DESC LIMIT 100000 ) t GROUP BY MV_Stat_Code