How to know Automatic Optimizer Statistics Collection is enabled?

How to know Automatic Optimizer Statistics Collection is enabled/disabled?
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sakthikumarAuthor Commented:
like is there any data dictionary view through which I can look into it.
Geert GOracle dbaCommented:
if you didn't switch it off, then it's on
and assuming the startup parameter in the pfile/spfile for

you can enable and disable it via dbms_auto_task

with this query you can see if the 11g job BSLN_MAINTAIN_STATS_JOB is enabled and scheduled

Select owner, job_name, enabled, state, last_start_date, next_run_date, logging_level
where owner = 'SYS'

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if upgraded from 10g you'll also notice GATHER_STATS_JOB
and this will be disabled

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