Record IDs
The record key of each record in the REGISET contains fields that determine whether AR/CTL will select the record to include in a limited list of records and during execution of the application program.
These fields together are called the record ID. When you create the record, you fill in the fields with values that will match information from the application program execution. This information includes qualifiers, such as the MVS system ID, the job name from the JCL, and the program name.
A record type may not use all possible qualifiers in its record ID. An execution may not have a value for a qualifier; for example, an execution that does not use a JCL procedure will have a blank procedure name qualifier.
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