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django/Aggregate Function

count

Django count 함 통해 .
.
RiskReport.objects.count()

max, min

Django . order_by .
.
Control.objects.values('cost').order_by('cost')[0:1].get()

sum, average

Django . , python .
.
def sum():
    for c in Consequence.objects.values('loss'):
       result= c.values()[0]
    return result

group by

Django . SQL 행하 .
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django/Example
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