I run a copy of my site locally so I can test plugins and templates changes before making them live. What I was wondering was, could I add new products to this local install, then somehow overwrite the database online to reflect these changes? I'm pretty sure I can do this because I run the same database as the one online, I've forgotten how I did it LOL So if I can, could someone walk me through it?

It's so much easier (and quicker) to do everything locally but I need all the urls to be exact as I have a lot of products that link to one another.

Thanks in advance for any help :)