select * from data where sn='1' order by id desc limit 4
idsntspqvaluesystemts
18877195 1 gputemp 37.0 1553491013 Mon 25 03 2019 06:16:53
18877194 1 cputemp 37.552 1553491013 Mon 25 03 2019 06:16:53
18877193 1 ip 192.168.2.148 1553491013 Mon 25 03 2019 06:16:53
18877190 1 gputemp 37.0 1553491011 Mon 25 03 2019 06:16:51

Mon Mar 25 06:17:03 2019 by walley