select * from data where sn='NAVenku' order by id desc limit 4
idsntspqvaluesystemts
29411977 NAVenku temp 7.3 1576493172 Mon 16 12 2019 11:46:12
29411976 NAVenku hum 80 1576493172 Mon 16 12 2019 11:46:12
29411592 NAVenku hum 79 1576492551 Mon 16 12 2019 11:35:51
29411591 NAVenku temp 7.4 1576492551 Mon 16 12 2019 11:35:51

Mon Dec 16 11:58:15 2019 by walley