This is the ideal source for anyone who wants to know how to handle production VSAM files efficiently. That includes programmers who are responsible for defining and maintaining VSAM files on their systems, as well as application programmers who want a broader view of VSAM than they need to develop programs.
Doug Lowe is a veteran author of more than 40 For Dummies books with more than a million copies in print. He's covered everything from productivity software to programming.
