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Specifies whether or not the user can override the value specified for the DBRC parameter.
The user can override the DBRC parameter.
The user cannot override the DBRC parameter.
If you specify UDBRC=N:
  • The DBRC option field on the DLI Mode Parameters panel is protected.
  • DBRC= statements in the HFMIMSIN input of batch jobs are ignored.
  • No DBRC= statements are included in the JCL generated by ZDT/IMS dialogs.

This parameter is optional. If it is not specified on the HFM1POPI macro statement, ZDT/IMS uses either the value specified on the HFM1POPD macro statement (if specified on that statement), or Y (otherwise).