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20050402
2019 Nov 12
3
CDR extract call numbers on interval on unique callers
hi,
we want to extract the information when the most callers are entering
our phone system based on an interval of 15 minutes. this is quite
simple (although not perfect) with
select calldate, count(*) as anzahl from cdr where calldate >
'2019-10-12' group by unix_timestamp(calldate) DIV 900 having ;
Unfortunately we have lots of callers who calls multiple times when they
are