Cleanup orphaned datapump jobs from DBA_DATAPUMP_JOBS:

Step 01: Check the orphaned datapump jobs.

sqlplus / as sysdba
SET lines 140
COL owner_name FORMAT a10;
COL job_name FORMAT a20
COL state FORMAT a12
COL operation LIKE owner_name
COL job_mode LIKE owner_name
SELECT owner_name, job_name, operation, job_mode,
state, attached_sessions
FROM dba_datapump_jobs;

OWNER_NAME JOB_NAME OPERATION JOB_MODE STATE ATTACHED_SESSIONS
---------- -------------------- ---------- ---------- ------------ -----------------
RANA SYS_EXPORT_SCHEMA_01 EXPORT SCHEMA NOT RUNNING 0
RANA SYS_EXPORT_SCHEMA_02 EXPORT SCHEMA NOT RUNNING 0

Step 02: Check the state field. For orphaned jobs the state will be NOT RUNNING. So from the output we can say both are orphaned jobs.

Step 03: Drop the master table.

DROP TABLE RANA.SYS_EXPORT_SCHEMA_01;
DROP TABLE RANA.SYS_EXPORT_SCHEMA_02;

Step 04: Check for existing data pump jobs by query issued in step 01. If objects are in recyclebin bin then purge the objects from the recyclebin.

SQL> SELECT owner_name, job_name, operation, job_mode,
 state, attached_sessions
 FROM dba_datapump_jobs;
OWNER_NAME JOB_NAME OPERATION JOB_MODE STATE ATTACHED_SESSIONS
---------- -------------------- ---------- ---------- ------------ -----------------
RANA BIN$xMNQdACzQ6yl22kj EXPORT SCHEMA NOT RUNNING 0
 9U0B8A==$0
RANA BIN$BmUy4r5MSX+ojxFk EXPORT SCHEMA NOT RUNNING 0
 sw8ocg==$0

SQL> PURGE TABLE RANA.SYS_EXPORT_SCHEMA_01;
Table purged.

SQL> PURGE TABLE RANA.SYS_EXPORT_SCHEMA_02;
Table purged.

Check if there is any orphaned jobs again.

SQL> SELECT owner_name, job_name, operation, job_mode,
state, attached_sessions
FROM dba_datapump_jobs;
no rows selected

Step 05: In this stage you did not get any orphaned jobs if the jobs have a master table. If there are still jobs listed in dba_datapump_jobs do cleanup process like below.

SET serveroutput on
SET lines 100
DECLARE
 job1 NUMBER;
BEGIN
 job1 := DBMS_DATAPUMP.ATTACH('SYS_EXPORT_SCHEMA_01','RANA');
 DBMS_DATAPUMP.STOP_JOB (job1);
END;
/
DECLARE
 job2 NUMBER;
BEGIN
 job2 := DBMS_DATAPUMP.ATTACH('SYS_EXPORT_SCHEMA_02','RANA');
 DBMS_DATAPUMP.STOP_JOB (job2);
END;
/