dba_scheduler_jobs history
SELECT LOG_DATE, OWNER, JOB_NAME, JOB_SUBNAME, STATUS,
ACTUAL_START_DATE, RUN_DURATION, CPU_USED, ADDITIONAL_INFO
FROM ALL_SCHEDULER_JOB_RUN_DETAILS -- or DBA_SCHEDULER_JOB_RUN_DETAILS
WHERE JOB_NAME = 'job_name'
ORDER BY LOG_DATE DESC;