This section describes how to create a DDM by either copying DDMs or creating DDMs directly from the field definitions in a database.
This section covers the following topics:
This section describes how to create a new DDM from an existing one.
If you want to copy DDMs between different libraries, database files, and/or hardware platforms, see also Maintaining DDMs in Different Environments.
If XREF entries exists for the DDM in the FDIC system file, they will also be copied for the new DDM.
To copy a DDM
On the DDM Services screen, choose .
The DDM maintenance window appears with a list of all DDMs available.
In the DDM maintenance window, position the cursor at the DDM you
want to copy (in the example below: EMPLOYEES), enter the function
code C and press ENTER.
The Copy DDM to window appears preset to the name of the DDM to be copied as shown in the example below:
24/09/2004 DDM Services Library: SYSTEM
10:04:31 V 6.1.1 Pl 9 Software AG 2004 DBID : 20
User: SAG FNR : 14
+------------------------------------------------------------------------------+
¦ Library DDM Maintenance Services Profile Quit ¦
+------------------------------------------------------------------------------+
+-------------+
¦ <CREATE> ¦
¦ C EMPLOYEES ¦
¦ PERSONNEL ¦
+----------- Copy DDM to -----------+
¦ EMPLOYEES ¦
+-----------------------------------+
Enter new DDM name
|
In the Copy DDM to window, replace the preset name by a new one and press ENTER.
The new DDM (here: EMPLOYEES_NEW) is saved as a source
and a cataloged object and is added to the list of DDMs:
24/09/2004 DDM Services Library: SYSTEM
10:04:31 V 6.1.1 Pl 9 Software AG 2004 DBID : 20
User: SAG FNR : 14
+------------------------------------------------------------------------------+
¦ Library DDM Maintenance Services Profile Quit ¦
+------------------------------------------------------------------------------+
+-----------------+
¦ <CREATE> ¦
¦ EMPLOYEES ¦
¦ EMPLOYEES_NEW ¦
¦ PERSONNEL ¦
¦ VEHICLES ¦
+-----------------+
Select DDM
|
This section describes how to create a new DDM from an Adabas database by using the <CREATE> menu option.
To create a DDM from an Adabas database
On the DDM Services screen, choose .
The DDM maintenance window appears.
From the top of the DDM maintenance window, choose .
The Select Database window appears as shown in the example below:
24/09/2004 DDM Services Library: SYSTEM
10:04:31 V 6.1.1 Pl 9 Software AG 2004 DBID :
User: SAG FNR :
+------------------------------------------------------------------------------+
¦ Library DDM Maintenance Services Profile Quit ¦
+------------------------------------------------------------------------------+
+-----------------+
¦ <CREATE> ¦
+------------- Select Database -------------+
¦ DBID 1 ¦
+-------------------------------------------+
¦ VEHICLES ¦
+-----------------+
Enter database number (0 - 65535 except 255)
|
Enter the database ID (DBID) of the Adabas file
for which a DDM is to be created. Valid values are 0 -
65535, except 255. If you enter a 0
(zero), the database ID specified with the Natural profile parameter
UDB (see the
Parameter Reference documentation) of the Natural
parameter file NATPARM is used.
If the specified DBID identifies an Adabas database, the Create ADABAS DDM window appears:
24/09/2004 DDM Services Library: SYSTEM
10:04:31 V 6.1.1 Pl 9 Software AG 2004 DBID :
User: SAG FNR :
+------------------------------------------------------------------------------+
¦ Library DDM Maintenance Services Profile Quit ¦
+------------------------------------------------------------------------------+
+-----------------+
¦ <CREATE> ¦
+------------ Create ADABAS DDM ------------+
¦ FNR 1 ¦
¦ DDM Name ¦
¦ Password ¦
+-------------------------------------------+
Enter file number (1 - 5000)
|
Enter the file number (FNR) of the database file
for which a DDM is to be created (valid values: 1 -
5000) and the name to be assigned to the DDM. If access to the
Adabas file is protected, a password is required.
Press ENTER.
If the specified database and the file are available, the DDM editor is invoked and the fields contained in that database file are read into the editing area.
If the specified database is not active or cannot be accessed or if the file does not exist, a corresponding error message is issued. Nevertheless, if you press ENTER, you can still open an empty DDM editor screen, enter new field attribute definitions and save the DDM source. However, in this case you cannot check any definitions against the database file description.
If required, edit the DDM: see the section Using the DDM Editor Screen.
After editing, press ESC and, from the MISC menu choose . See also Saving and Cataloging a DDM.
The syntax of the DDM source is checked and the DDM is saved as a source and a cataloged object.
