DFHDBFK - The CDBM GROUP command file

Before you can use the /GROUP command CDBM requires a file in which all your predefined commands can be stored. This file, DFHDBFK, is the CDBM GROUP command file. It is a VSAM KSDS.

Note: The DFHDBFK file must be defined as a local file to each region that uses the CDBM transaction. It cannot be shared by multiple regions. If the file is remote, the CDBM transaction receives an error when it attempts to open the file.

The DFHDBFK file is not required until you first attempt to use the /GROUP command.

Table 1. Record layout in the CDBM GROUP command file
Field	Length	Content	Description
1	12	Group	A 12-character field containing your chosen name for this group. The acceptable characters are A-Z 0-9 $ @ and #. Leading or embedded blanks are not allowed, but trailing blanks are acceptable.
2	10	IMS Command	A 10-character field containing any of the IMS command verbs that are valid for CDBM (see Commands valid with CDBM for details). Leading or embedded blanks are not allowed, but trailing blanks are acceptable. Note: The validity of the IMS command verb is not checked by CDBM. Invalid values will be reported by IMS when the command is attempted.
3	1406	IMS Command parameters	Up to 1406 characters of parameters appropriate to the chosen IMS command verb. (This will often consist of lists of databases.) Note: Wildcard characters may not be used in the parameters stored in the CDBM Group command file. This is unlike the other functions of the CDBM transaction which permit the use of wildcard characters to describe multiple similarly named databases.