Consider the job flow diagram in the display.

The Inner Job can be successfully executed by itself, but only if the defined parameter has been assigned a valid default value.

The Inner Job cannot be successfully executed by itself unless it is disassociated from the loop job.

The Control Table column is mapped to the parameter defined for the Inner Job using the Loop transformation properties window.

If the server that executes the job has multiple CPUs, parallel processing can be enabled in the Loop transformation properties window.