Logikal Solutions has released "The Minimum You Need to Know to Be an OpenVMS Application Developer" ISBN 0-9770866-0-7.
This book covers developing the same application in BASIC, FORTRAN, COBOL and C/C++. The use of RMS indexed files and RDB Database. MySQL is also covered, but only from a C perspective. The FMS screen management library, MMS/CMS, DCL and a host of other concepts. It is designed so a person familiar with one of the covered languages can both quickly come up to speed on OpenVMS, and learn another of the covered languages by comparing the programs. You can learn more about this and other books from Logikal Solutions by visiting http://www.theminimumyouneedtoknow.com.