What is z/TPFDF?
Enforce a standard for database organization and provide common routines. z/TPFDF enables database administrators to modify database characteristics without affecting application programs.
Improve application program performance by, for example, allowing physical data to be organized to reduce direct access storage device (DASD) I/Os.
Eliminate program modification
Avoid program modification for integrating applications. Block size changes and other physical database changes are transparent to the application.