alter table as_session_sections drop constraint as_session_sections_section_fk;

alter table as_session_sections drop constraint as_session_sections_session_fk;

alter table as_session_sections add constraint as_session_sections_section_fk foreign key (section_id) references as_sections(section_id) on delete cascade;

alter table as_session_sections add constraint as_session_sections_session_fk foreign key (session_id) references as_sessions(session_id) on delete cascade;

alter table as_session_items drop constraint as_session_items_item_fk;

alter table as_session_items drop constraint as_session_items_section_fk;

alter table as_session_items drop constraint as_session_items_session_fk;

alter table as_session_items add constraint as_session_items_item_fk foreign key (as_item_id) references as_items(as_item_id) on delete cascade;

alter table as_session_items add constraint as_session_items_section_fk foreign key (section_id) references as_sections(section_id) on delete cascade;

alter table as_session_items add constraint as_session_items_session_fk foreign key (session_id) references as_sessions(session_id) on delete cascade;

alter table as_session_item_map drop constraint as_session_item_map_item_data_fk;

alter table as_session_item_map drop constraint as_session_item_map_session_fk;

alter table as_session_item_map add constraint as_session_item_map_item_data_fk foreign key (item_data_id) references as_item_data(item_data_id) on delete cascade;

alter table as_session_item_map add constraint as_session_item_map_session_fk foreign key (session_id) references as_sessions(session_id) on delete cascade;

alter table as_item_data_choices drop constraint as_item_data_choices_choice_id_fk;

alter table as_item_data_choices drop constraint as_item_data_choices_data_id_fk;

alter table as_item_data_choices add constraint as_item_data_choices_choice_id_fk foreign key (choice_id) references as_item_choices(choice_id) on delete cascade;

alter table as_item_data_choices add constraint as_item_data_choices_data_id_fk foreign key (item_data_id) references as_item_data(item_data_id) on delete cascade;

alter table as_session_choices drop constraint as_session_choices_choice_fk;

alter table as_session_choices drop constraint as_session_choices_item_fk;

alter table as_session_choices drop constraint as_session_choices_section_fk;

alter table as_session_choices drop constraint as_session_choices_session_fk;

alter table as_session_choices add constraint "as_session_choices_choice_fk" FOREIGN KEY (choice_id) REFERENCES as_item_choices(choice_id) on delete cascade;

alter table as_session_choices add constraint "as_session_choices_item_fk" FOREIGN KEY (as_item_id) REFERENCES as_items(as_item_id) on delete cascade;

alter table as_session_choices add constraint "as_session_choices_section_fk" FOREIGN KEY (section_id) REFERENCES as_sections(section_id) on delete cascade;

alter table as_session_choices add constraint "as_session_choices_session_fk" FOREIGN KEY (session_id) REFERENCES as_sessions(session_id) on delete cascade;

alter table as_assessment_section_map drop constraint as_assessment_section_map_assessment_id_fk;
alter table as_assessment_section_map drop constraint as_assessment_section_map_section_id_fk;

alter table as_assessment_section_map add constraint "as_assessment_section_map_assessment_id_fk" FOREIGN KEY (assessment_id) REFERENCES as_assessments(assessment_id) ON DELETE CASCADE;
alter table as_assessment_section_map add constraint "as_assessment_section_map_section_id_fk" FOREIGN KEY (section_id) REFERENCES as_sections(section_id) ON DELETE CASCADE;
alter table as_session_results drop constraint "as_session_results_result_id_fk";
alter table as_session_results add constraint "as_session_results_result_id_fk" FOREIGN KEY (result_id) REFERENCES cr_revisions(revision_id) on delete cascade;
alter table as_session_results drop constraint "as_session_results_target_id_fk";
alter table as_session_results add constraint "as_session_results_target_id_fk" FOREIGN KEY (target_id) REFERENCES cr_revisions(revision_id) on delete cascade;