Really really basic C# and SQL solution

Question

Hi,

I need to develop simple c#, desktop-based software that will execute simple queries on a local SQL database. Another 2 computers in the office must also be able to use this software (where the software will then access the same SQL database on the first computer).

QUESTIONS:

- What software can I use to host the SQL database?
- Is distributing the software over the network going to be a big issue? Is it fairly simple to install on each computer and get it to access the database remotely on two out of the 3 computers?

Thanks a lot in advance, I appreciate any feedback on this problem,

Dan