I wrote an application that currently runs against a local instance of MySql. I would like to centralize the DB somewhere on the Net, and share my application.
But, I'm cheap, and don't want to pay for it. Does anyone know of a free on-line relational DB service that I could connect to via C#?
I've never heard of such a thing. A few years ago, many hosts (Brinkster, etc) offered some minimal database capacity with their free web hosting accounts, but I think you'd find it difficult to find something like that now. Even if you could, most hosts no longer allow you to connect to a database (even on an account you're paying for) outside of a web application running on their server.
My advice would be to cobble together an old computer and use that as a database server that you run out of your house (coupled with no-ip or some similar service, probably). If you're going to need more horsepower/bandwidth than that, you'll probably just have to suck it up and pay for something.
Have you taken a look at http://creator.zoho.com/?
I haven't tested it myself but it might be a good idea to check it out.
Oops, didn't read the question properly that time! :P
Haven't tried this yet, and their site says they had had a major crash recently, but it looks promising: http://www.freesql.org/
What about http://www.freesql.org ? Seems like you can't be too picky when you're asking for free, and this seems to offer something.
Sounds like you need Amazon SimpleDB...
It's not free, but pricing looks pretty good. I've not used it myself, but when I've got a bit of spare time I might use it for a project I'm working on.
Maybe you've found an unserviced niche?!
Well, there is http://zymic.com/. They provide free hosting, which includes free databases. Not sure if you can connect to it from outside. You'll have to check that out.