I had been using MySQL directly in my sim library under Unity and recall the struggle to get it working - hunting for information, conflicting procedures, grave warnings whether it would work at all. But with version 5 is has become as simple as dropping the MySql.Data.dll into a Plugins folder. No other dll's or setting changes ( I was already set to use .Net 2.0 full ) were needed. It took longer to write the unit test to verify operations! Thank you Unity devs on a good job making this so easy to use.