ORA-31634: job already exists

admin

ORA-31634: job already exists
Cause: Job creation orrestart failed because a job having the selected name is
currently executing. This also generally indicates that a Master Table withthat job
name exists in the user schema. Refer to any following error messages for
clarification.
Action: Select a differentjob name, or stop the currently executing job and re-try
the operation (may require a DROP on the Master Table).
ORA-31635: unable toestablish job resource synchronization
Cause: A lock used insynchronizing Data Pump resources during job creation
and deletion could not be obtained during job creation. This indicates that a
process for some other Data Pump job has not released the lock due to aninternal
error.
Action: Eliminate the processesfor any failed Data Pump job and try to create the
new job again. If the error continues to occur, contact Oracle Customer Support
and report the error.
ORA-31636: session isalready attached to job string for user string
Cause