Jared Still wrote:
Good! The more the merrier! Welcome to the club.
Oh most definitely.
As I just finished writing a prototype package for assigning MAC addresses ( we make network stuff - that's a technical term ), I have endured the agonies of doing hex math in PL/SQL.
I finally bit the bullet and used string manipulation to convert hex to decimal and do what I needed that way. Couldn't get BITAND to work properly on very large integers. Besides, doing XOR with BITAND in PL/SQL is very painful.
BITAND in PL/SQL works for INTEGER/PLS_INTEGER only.
UTL_RAW has an XOR, but it requires RAW values and I didn't feel like messing with it.
This is all very simple in Perl.
Sure!
Given a MAC of 000050000AA, with a fixed portion of 00005000000, it is very easy to determine the variable portion of the address via $x = 0x000050000AA ^ 00005000000.
Not quite so simple in PL/SQL.
"Globally unique addresses are allocated by the IEEE in blocks containing 2^24 (16,777,216) addresses. In each allocation, the first 3 octects are fixed (e.g. 00-00-0C is Cisco) and the last three octects are variable (e.g. 00-00-00 through FF-FF-FF). The fixed portion of the allocation is known formally as the Organizationally Unique Identifier (OUI), and infomally as the Ethernet Vendor ID. Often, the OUI portion of a MAC address is extremely helpful in indentifying which physical piece of equipment is generating a particular packet."
00-00-50 is for RADISYS CORPORATION, right?
x := SUBSTR('0x0000500000AA', -6);
Then you can use BITAND. However, I'm not saying that PL/SQL is better than perl -- every language has its own purpose. -- Vladimir Begun The statements and opinions expressed here are my own and do not necessarily represent those of Oracle Corporation.
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Vladimir Begun INET: [EMAIL PROTECTED]
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