What TASK CODE is used in CV to process ERUs such as Batch or CICS?

Products

• IDMS
• IDMS - Database
• IDMS - ADS

Issue/Introduction

What TASK CODE is executed in CV to process DML issued by external (ERUS) programs such as Batch or CICS?  RHDCNP3S?

Environment

Release: All supported releases.

Resolution

DC/UCF identifies the corresponding task for an external request unit using the following search strategy:

1. It searches the TASK table for a task code that is specific to the front-end application:
   • For batch applications, the name of the main program of the job step is used as the task code. For example, IDMSDMLC is used as the task code when running a COBOL precompile step.
   • For CICS applications, the task codes are defined as follows:
     • For IDMSINTC users, the CICS transaction code is used as the task code.
     • For IDMSINTL users, the Program Name specified in the Subschema Control block (SSC) is used as the task code.
   • For DC/UCF applications, the DC/UCF front-end task code is used as the back-end task code.
2. If no matching task code was found in step 1, it searches the TASK table for a task code corresponding to the front end system ID, which may be one of the following:
   • BATCBULK—for batch applications
   • xxxxBULK—for CICS applications, where xxxx is system-name in the TPNAME parameter of the IDMSINTC macro
   • DCXXBULK—for DC/UCF applications
3. If still no match is found, it uses task code RHDCNP3S. 

 

 

 

Additional Information

System Generation: External Request Units