Static Data or Database

Is there a way I can store data in a notecard. Or change the contents of a note card through a script. What I am looking for is some sort of database. Any thoughts?

Nope.




But it has been mentioned that there will be a Database object in the future that can store find and remove data. Just not today, and not tomorrow.

So Friday then? lol j/k

llEmail and XMLRPC are your friends when it comes to persistant data. However there is an ugly hack on the LSL WIKI :Hacks called " Permanent Small Memory Information Storage" that shows you how to use (llSetObjectDesc / llGetObjectDesc) to store small bits of data in a prims description.

Is xml-rpc even implemented correctly yet? I have been reading about it and from what I can tell from the LSL Wiki you can't do much with it. Anyone have any advice or knowledge about xml-rpc?

Inbound XML-RPC works just fine. So conventional theory says you send an email out to an external server when you need to start XML-RPC. Once you have established an inbound XML-RPC message, you can send data to your server using the XML-RPC reply messege.

The obvious problem is email latency. So you have to design your scripts around that piece of knowledge. A more subtle problem is the fact that XML-RPC requires the objects Key. Keys often change, so they have to email thier new keys to the server. Sending a key on initializaition helps mitigate that.

There is also a 1-3 second latency on XML-RPC messeges, which for data storage is no big deal.

Have any more specific questions? Perhaps I can help.
-Satchmo-

Just to add to this, for smaller scripts in terms of data, you can loop an inbound XML-RPC call and send out data with the reply message at regular intervals. This takes a little restraint and knowledge of the system, though, because you don't want to turn that into a heck of a lot of requests in a small span of time.

I do something like this with my IRC bot, for example. Every time my bot is pinged by the server, I send a request into Second Life for any data that might have not been sent yet.

On the latency issue, it's not too bad if you have a dedicated server. I can get sub 1-second round-time ping responses from the twin servers that I use, when using email, XMLRPC is roughly a second or so to do a full response.

-Adam

Yup, it's all in the system design too. As long as you don't design your scripts to run up against the email rate limits, it's a pretty resonable latency.