如何写SQL获得Oracle 服务器的IP地址

你先自己去看下
substr
好instr
两个的用法。
实现你说的方法可以：
select
substr('21806182',
1,length('21806182')
-
instr('',
reverse('21806182')))
from
(select

from
t_base_ipaddressinfo
where
'21806182'
between
startip
and
endip)
t
where
startip
=
substr('21806182',
1,length('21806182')
-
instr('',
reverse('21806182')))
||
substr(startip,
instr('',
reverse(startip)))

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