Ethernet card physical address

Question

Good morning guru,
Is it posible using sql to get the information about
the Ethernet Card Physical Address local computer (network card address) ?
like : 00-0E-A6-37-BA-25
mayble something like : select ecard from dual ?
If no, any idea how can I got it ?
Thank's

Answer 1

Simple answer - no.
Complex answer/response - what on earth for?
On the server side, you have to crack open the physical network packet header to get to the MAC address of sender. And that is not a simplistic thing to do, and outside the scope of PL/SQL and even Java stored procs.
Why? Because you need access to the physical packet - which you do not have. In PL/SQL and Java in Oracle, you're already at a fairly abstract level. With a shared server process, your code do not even deal with the network communication side with the client. That is done with by the dispatcher processes. So even if you could somehow hack the data segment of your physical Oracle process running your PL/SQL or Java code, the socket and packet data are not there to be found.
Which begs the question why do you want to use it? It is pretty meaningless higher up is the OSI stack. And your code is running in topmost layer, layer - the application layer. Layer 6 does not show your layer, the MAC address.
So the reasoning for wanting the MAC address need to be closely re-examined - as the "solution" for that requirement, using the MAC address, is likely a very much flawed solution.