How keyword values are determined

The value specified for each keyword has an order of priority.

A value in a higher position in the following list overrides one in a lower position:

  1. The value specified in the JCL stream
  2. The value specified in the AREA member in the parameter library
  3. The value specified in the DB member in the parameter library
  4. The global default value specified in the PROCLIB member
  5. The system default value
Exceptions:
  • AREA member is not used in the following cases:
    • OPC except when AREA=areaname is specified
    • OER except when AREA=areaname is specified
    • ODE running with the run-level control
    • ODM
  • DB members and AREA members are not applied to the GLOBAL control statement.