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1. V$OPTION:- displays database options and features
select parameter from v$option where value='TRUE' order by parameter;
Expected output:-
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2. DBA_REGISTRY:- displays information about the components installed with database.
select comp_name,version from dba_registry where status='VALID';
Values under status column may be one of the following:
- INVALID
- VALID
- LOADING
- LOADED
- UPGRADING
- UPGRADED
- DOWNGRADING
- DOWNGRADED
- REMOVING
- REMOVED
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