SQL> create index MY_INDEX on t(object_name) indextype is ctxsys.context parameters('sync (every "sysdate+(1/96)")');
Index created.
SQL> select JOB_ACTION from DBA_SCHEDULER_JOBS where job_name='DR$MY_INDEX$J';
JOB_ACTION
ctxsys.drvdml.auto_sync_index('MY_INDEX', 12582912, NULL, NULL, NULL, 0);