Dudes,
How can I make a GROUP BY function into an SQL instruction, to count how much machines by ip address range (until the 3rd range)?
Ex: (Existent registers for a field called ip_addr)
172.17.17.1
172.17.17.2
172.17.17.3
172.18.196.12
172.18.196.22
172.22.3.1
Range 172.17.17: 3 machines
Range 172.18.196: 2 machines
Range 172.22.3: 1 machine
3  1955 
Dudes,
How can I make a GROUP BY function into an SQL instruction, to count how much machines by ip address range (until the 3rd range)?
Ex: (Existent registers for a field called ip_addr)
172.17.17.1
172.17.17.2
172.17.17.3
172.18.196.12
172.18.196.22
172.22.3.1
Range 172.17.17: 3 machines
Range 172.18.196: 2 machines
Range 172.22.3: 1 machine
You can (in ver.8) group by
SUBSTR(ip_addr, 1,
LOCATE('.',ip_a ddr,
LOCATE('.',ip_a ddr,LOCATE('.', ip_addr)+1)+1)-1)
because
SELECT SUBSTR('172.18. 196.12',1,
LOCATE('.','172 .18.196.12',
LOCATE('.','172 .18.196.12',LOC ATE('.','172.18 .196.12')+1)+1)-1)
FROM SYSIBM.SYSDUMMY 1
is 172.18.196
regards,
poddus
you can (in ver.8) group by
SUBSTR(ip_addr, 1,
LOCATE('.',ip_a ddr,
LOCATE('.',ip_a ddr,LOCATE('.', ip_addr)+1)+1)-1)
becase FROM SYSIBM.SYSDUMMY 1
SELECT SUBSTR('172.18. 196.12',1,
LOCATE('.','172 .18.196.12',
LOCATE('.','172 .18.196.12',LOC ATE('.','172.18 .196.12')+1)+1)-1)
from sysibm.sysdummy 1 is 172.18.196
regards,
poddus
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