Oracle APEX 5 - Master-detail-detail form
https://www.youtube.com/watch?v=a2l1r3RbHgg
http://www.dba-oracle.com/t_easy_html_db_creating_a_master_detail_form.htm
https://www.youtube.com/watch?v=a2l1r3RbHgg
http://www.dba-oracle.com/t_easy_html_db_creating_a_master_detail_form.htm