What are the forms that you are working with?
If you go to a form and while on a queried record go to Help -> Record History you will see the table/view that stored the data.
What is the navigation of that form?
you can check like this...
first check the column name from that form through help--> diagnostics --> examine
Then check like below.
select * from all_tab_cols where column_name like 'COL_NAME%';
Hope this will help you...