Traditional system interface

The IBM® i traditional system interface is the full set of system commands and other non-SQL facilities that you can use to access and change Db2® for i data.

The traditional system interface provides control language (CL) commands to create and manage database objects. The system interface also has an integrated facility for describing data called data description specifications (DDS).

The IBM Rational® Development Studio for i licensed program provides several utilities to describe and process data. The data file utility (DFU) can add, change, and delete data in a database file that is described by RPG, DDS, and the interactive data description utility (IDDU). The source entry utility (SEU) can specify and change data in files.