sql - MySQL checking last updated time on multiple devices -

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i check last update date , time (recordtime) every treehugger id (treehuggerid) , below did. output not last update time according below query. please advice. thank you.

 select `recordtime`, distinct `treehuggerid` `sensor_treehuggers`  `treehuggerid` < 20000 , `treehuggerid` > 10000  order `recordtime` desc

you have select max(recordtime) every treehuggerid , don't need distinct

select treehuggerid,max(recordtime) sensor_treehuggers

then @ end

group treehuggerid

like this

select treehuggerid,max(recordtime) sensor_treehuggers treehuggerid between 10000 , 20000 group treehuggerid

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