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== Advanced Queries == <source lang=bash> > SELECT COUNT("water_level") FROM "h2o_feet" \ WHERE time >= '2015-08-19T00:00:00Z' \ AND time <= '2015-08-27T17:00:00Z' \ AND "location"='coyote_creek' GROUP BY time(3d) </source> <source lang=bash> > select * from system limit 1; name: system time host load1 load15 load5 n_cpus n_users uptime uptime_format ---- ---- ----- ------ ----- ------ ------- ------ ------------- 1494233380000000000 jackslab 0.09 0.28 0.29 2 6 807623 9 days, 8:20 > show tag keys from system; name: system tagKey ------ host > show field keys from system; name: system fieldKey fieldType -------- --------- load1 float load15 float load5 float n_cpus integer n_users integer uptime integer uptime_format string > select * from system order by time desc limit 5; name: system time host load1 load15 load5 n_cpus n_users uptime uptime_format ---- ---- ----- ------ ----- ------ ------- ------ ------------- 1495615580000000000 jackslab 0.4 0.23 0.21 2 4 1028371 11 days, 21:39 1495615570000000000 jackslab 0.02 0.2 0.13 2 4 1028361 11 days, 21:39 1495615560000000000 jackslab 0.02 0.2 0.13 2 4 1028351 11 days, 21:39 1495615550000000000 jackslab 0.03 0.21 0.14 2 4 1028341 11 days, 21:39 1495615540000000000 jackslab 0.03 0.21 0.14 2 4 1028331 11 days, 21:38 </source> Only 'order by time' can work. 'order by uptime' can not work * https://docs.influxdata.com/influxdb/v1.0/query_language/data_exploration/ <br><br>
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