prompt Force delete generalisation associations that have invalid 'subtype_reference'

DECLARE
   bug_no varchar2(8) := 'CK927135';
BEGIN

  update ck_migration_objects set ci_created = 'N' where ci_stage = 'CKPREMIG' and ci_name = bug_no;

  for assoc in 
  (
    select assoc.id id
    from ci_generalisation_associations@r212 assoc
    where not exists ( select 1
                       from ci_abstract_types@r212 abt
                       where abt.id = assoc.subtype_reference )                 
    and assoc.application_system_owned_by in ( select ci_appid
	    					           from ck_migration_objects
						           where ci_stage = 'APPSEL' )
  )
  loop
    ciiutl.delete_element@r212(assoc.id, 'ABTABT');
  
    delete from sdd_structure_elements@r212
    where str_id = assoc.id;
  
  end loop; 

  update ck_migration_objects set ci_created = 'Y' where ci_stage = 'CKPREMIG' and ci_name = bug_no;
   
  commit;
  
EXCEPTION 
  when others then
     dbms_output.put_line (' ** Exception Raised ** ');
     dbms_output.put_line ('...ERROR: '||substrb(sqlerrm, 1, 200));
     raise;
	 
end;
/
