I need to teach my two interns how to use RDBMSes in general and "standard" SQL during their free time, using the outdated windows notebooks we have laying around. They come from math courses and have had little contact with programming.
Which database management system should I use to teach them? I need something with a trivial import\export interface, loading data to MS SQL Server Express can be a pain sometimes.
My long term goals are: Enable them to use the MS SQL Server we have at work, and to use Pentaho to visualize data on that server.