select * from data where sn='221' and pq='hum' order by id desc limit 4
idsntspqvaluesystemts
62322634 221 hum 72.30 1662908720 Sun 11 09 2022 17:05:20
62322623 221 hum 72.50 1662908700 Sun 11 09 2022 17:05:00
62322616 221 hum 72.50 1662908697 Sun 11 09 2022 17:04:57
62322606 221 hum 72.30 1662908681 Sun 11 09 2022 17:04:41

Fri Jun 20 02:02:03 2025 by walley