L2J Server

I would like to learn and can be updated without having to reinstall the audit database, and without losing the important components of the game that can harm the development of the server, such as rollback and so on ... if you can how, can please explain for more on this ...

Suppose the database updated one sql query, changed a couple of sources and added a couple of dialogues in datapack and a couple skills that you need to do that would not harm the server or rather how it's updated?

The thing is that I do not use Eclipse and will there Tortoisesvn manual for this program?

No. If you use TortoiseSVN then you should already know how to do these things. Read their website/wiki.