Hello.

I am designing an application that will run my computer repair shop and am having trouble deciding which database to use.

I was planing on using MS SQL but I do not have thousands of dollars to purchase a SQL Server License. I have SQL EE but I am not sure if I can use that for production software or if it is intended only for designing software. I also don't know if it has any limitations. I was told it had a 2 GB limit.

I am also thinking about using MySQL with my C# application. I believe it is just as fast as MS SQL and it would be free to use.

The third option was using XML however, I'm sure it would be a slow solution compred to the first two options. There is also a security issue with XML because any employee could locate the xml file(s), open them in Wordpad and view private data.

I'm not sure which solution would be the best. Does anyone have any suggestions?