Data Definition Module (DDM)

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# Data Definition Module (DDM)

A data definition module (DDM) contains the description of a database file and the fields therein. Natural requires this description to access the data stored in the file from a Natural program.

For further information, see Data Definition Modules - DDMs and Natural and Database Access.

#### Related Topics:

- Accessing Data in an Adabas Database

- Accessing a Db2 Table in the Database Management System Interfaces documentation

- Generating Natural Data Definition Modules (DDMs) - SQL Services - in the Database Management System Interfaces documentation

- Protecting DDMs On Mainframes in the Natural Security documentation