To initialize the Date field to the system date at runtime, specify INZ(*SYS)
on the definition specification. To initialize the Date field to the job date
at runtime, specify INZ(*JOB) on the definition specification. *SYS or *JOB
cannot be used with a field that is exported. The Date field can also be initialized
to a literal, named constant or figurative constant.
Note: Runtime
initialization takes place after static intitialization.