I think Gerald was suggesting you convert the IP's into integers and
then do bitwise stuff on them. I don't know of a way to do what you're
asking.
Baron
Wagner, Chris (GEAE, CBTS) wrote:
Those functions concern dotted quad IP addresses, not packed binaries.
Anybody know of some obscure MySQL functions to do bit logic on strings
or get MySQL to recognize a char sequence as an integer?
"Gerald L. Clark" wrote:
Wagner, Chris (GEAE, CBTS) wrote:
Hi. I've got IP addresses stored in the database as packed binaries.
i.e. binary(4). I put them in there that way so that I could do bitwise
logic on them to do subnet searches. e.g. ...WHERE `ip` & 'mask' =
'network'. Only it turns out that as far as I can tell MySQL can't do
bit logic on strings, only integers. I came up with an onerous SQL call
that eats the 4 bytes and makes an integer out of them but there's got
to be a better way. The worst case is that I redo the database to have
all the IP's as integers.
Anybody know of a way to make MySQL either do the bit logic on the
string or convert/cast the string as an integer? Thanks.
Try INET_ATON() and INET_NTOA().
--
Gerald L. Clark
Supplier Systems Corporation
--
Baron Schwartz
Xaprb LLC
http://www.xaprb.com/
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