My database is version 11.2.0.1.0 and PLD is 9.0.0.1601. Right clicking on a SYS view, e.g. v$object_usage, includes the option to Describe the view but when I select that option I get a message box saying "Object SYS.V_$OBJECT_USAGE has been deleted" followed by an empty Columns listing window. Selecting Properties also gives "Properties not available".
Connecting with SQL*Plus and doing "desc v$object_usage" works just fine.
Connecting with SQL*Plus and doing "desc v$object_usage" works just fine.