ILE RPG programs access files on remote systems through distributed data management (DDM). DDM allows application programs on one system to use files stored on a remote system as database files. No special statements are required in ILE RPG programs to support DDM files.
A DDM file is created by a user or program on a local (source) system. This file (with object type *FILE) identifies a file that is kept on a remote (target) system. The DDM file provides the information needed for a local system to locate a remote system and to access the data in the source file. For more information about using DDM and creating DDM files, refer to the DB2 Universal Database for iSeries section of the Database and File Systems category in the i5/OS Information Center at this Web site - http://www.ibm.com/systems/i/infocenter/.