Sometime you wonder about the standard oracle views that where it gets information. Also, you might be interested in getting base table information so that you can write your own sql queries.
This will help you to get the details.
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select VIEW_DEFINITION from v$fixed_view_definition where VIEW_NAME='&view_name';--V$log
This will help you to get the details.
set lines 300 pages 300
select VIEW_DEFINITION from v$fixed_view_definition where VIEW_NAME='&view_name';--V$log