If you’ve ever wanted to find out which views reference a certain table/column condition in an Oracle database, there is a view called user_views which can be queried as the owner of the view and contains the sql used to define the population of the view. There is a slight trick to querying it though, as that column is a Long datatype. You can use the following SQL:
select * from user_views where dbms_xmlgen.getxml('select text from user_views where view_name = ''' || view_name || '''') like '%<thing I want to search for>%';
Just replace the like with the thing you want to search for. Hope that’s useful!