This Natural profile parameter is used to specify five subparameters for the Natural system file for DDMs.

Possible settings	See FDDM Parameter Syntax.
Default setting	none
Dynamic specification	yes
Specification within session	no

Notes:

1. If this system file is defined, all DDMs are stored on the specified path. DDMs stored in libraries will no longer be accessible from Natural. This is similar to Natural on mainframes, where all DDMs are stored in the system file FDIC.
2. If the FDDM system file is undefined (database-ID and file-number = 0), the DDMs are stored in the libraries as supplied before. The system file FDDM is displayed as an inactive environment.
3. For information on system files, refer to: System Files in the Natural Operations documentation.

FDDM Parameter Syntax

The parameter syntax is as follows:

FDDM=(database-ID,file-number,password,cipher-key,RO)

Where:

Syntax Element	Value	Explanation
database-ID	1 - 65535	Database identification of the database in which the Natural system file for DDMs is located. Note: Database ID 255 is reserved for logical system files for Software AG products, see Natural profile parameter LFILE.
file-number	1 - 255	File number of the database file in which the Natural system file for DDMs is located.
password	1 - 8 characters	The password is only required if the Natural user-program system file has been password-protected using the Adabas security feature. Note: The password is reserved for future use; currently, it is ignored.
cipher-key	1 - 8 numeric characters	The cipher key is only required if the Natural user-program system file has been ciphered using the Adabas security feature. Note: The cipher key is reserved for future use; currently, it is ignored.
RO	-	Indicates that the Natural user-program system file is "read-only" and is only specified if modifications on the file are to be disabled.

Examples:

FDDM=(22,5)
FDDM=(22,5,,12345)
FDDM=(22,5,,,RO)