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Hi I need help with mysql query select city, sum(sub.area_consumption) from

(
select city, sum(amount_streetlight) / consumption as area_consumption
from MuniLEIMS.statisticalreport
group by city, area
) as sub
group by sub.city

I'm trying to calculate average consumption per area (every city has many areas)
it looks like it should work?

2 ответов

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Maybe you try to solve that problem with the wrong tool; databases are, normally, not made to execute arithmetic operations.

Sebastian Dicke
Maybe you try to solve that problem with the wrong...

I don’t agree at all, database is a good tool to manipulate and aggregate data

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