Choosing DBMS for sensor network like system Post: 302637499

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Special Forums UNIX and Linux Applications Choosing DBMS for sensor network like system Post 302637499 by majid.merkava on Wednesday 9th of May 2012 01:47:55 AM

05-09-2012

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each record is like this:
<record id>, <station id>,<x1>,<x2>,<x3>,<capture-time>

almost all reports are based on time.
1. total sum of x1 for station_id = 223 between month 8 to 12
2. total sum of x1 for station_id = 2344, 123 which x2 is less than 13 in month 1, day 12 to 23
3. total number of x3 during night hours in year 2008

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