select * from data where sn='ds0' order by id desc limit 4
idsntspqvaluesystemts
39735832 ds0 hum 69.10 1594693580 Tue 14 07 2020 04:26:20
39735831 ds0 temp 19.80 1594693580 Tue 14 07 2020 04:26:20
39735815 ds0 temp 19.90 1594693558 Tue 14 07 2020 04:25:58
39735814 ds0 hum 69.20 1594693558 Tue 14 07 2020 04:25:58

Tue Jul 14 04:26:26 2020 by walley