ORA-39090: Cannot add devices to file oriented job.

ORA-39090
ORA-39090: Cannot add devices to file oriented job.
Cause: Attempt to add a device to a job that already contains more than one disk
file.
Action: Only specify one file for jobs that contain sequential devices.
More details : Viste http://www.high-oracle/ora-39090/
More details : Viste http://www.high-oracle/ora-39090/
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