Oracle Data Dictionary
There's a view of all the data dictionary views in oracle called DICTIONARY. So you can query it like so:
select
TABLE_NAME,
COMMENTS
from
DICTIONARY
order by
TABLE_NAME;
This includes comments about most of the views which is really handly. Almost all the views use plurals (ALL_TABLES not ALL_TABLE)
To find all the tables associated with a schema, query ALL_TABLES and specify the appropriate OWNER e.g. SYSADM.
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