You could send them to this class at the science museum and have them read a book or the VFP help for the foxpro details.
https://comped.smm.org/Regist/DisplayClasses.4d?LDB20043|Database Basics (Seminar)
What is a database?
What can you do with a database?
Database terms: file, table, record, field, query, etc.
Database programs: Access, SQL, FileMaker, etc.
Building relational databases
>Does anyone know of some training classes to help out a programmer who doesn't even know what a table is? We are thinking of hiring a programmer who has logic ability but knows nothing about databases. So we are looking for some simple class to help get them up to speed with tables, locks, basic foxpro commands. Then we could give them on the job training once they are at that point. We currently use VFP 6 and are in the process of moving to VFP 8. We don't use a lot of the new VFP features because we have a huge app and the upgrade path has left a lot of code still in the FoxPro 2.6 style.