Sådan finder du alle tabeller med en bestemt kolonne:
select owner, table_name from all_tab_columns where column_name = 'ID';
Sådan finder du tabeller, der har en eller alle af de 4 kolonner:
select owner, table_name, column_name
from all_tab_columns
where column_name in ('ID', 'FNAME', 'LNAME', 'ADDRESS');
For at finde tabeller, der har alle 4 kolonner (hvor ingen mangler):
select owner, table_name
from all_tab_columns
where column_name in ('ID', 'FNAME', 'LNAME', 'ADDRESS')
group by owner, table_name
having count(*) = 4;