Database interface specification

Note: This section applies only for Micro Focus Data Express for z/OS.

A different default process identifier is loaded for each type of database. This identifier can be replaced if appropriate.

Process identifiers guide Data Express through the processing modes of each database by providing the following information:

Format type
Fixed (FB) or variable (VB) length format.
Access type used
Direct access to the database, access to its sequential unload (for example, DL/I database unload, or DB2 table unload) or access to image-copybook files for DB2 databases.
Length of the sequential unload
Required only for the DL/I sequential unloads.
File identifier within the sequential unload
Required only for the DL/I sequential unloads.
Data record position within the sequential unload
Required only for the DL/I sequential unloads. For all the other types of databases, you can leave the default value.
Data record length within the sequential unload
Required only for the DL/I sequential unloads.
Name of the I/O routine called for the reading of the database.