create or replace function FilterMinganci(str in varchar) return varchar2 is  filterWorld varchar2(1000);  keyCount    int;begin  filterWorld := str;  keyCount    := 0;  select count(1) into keyCount from dic_keyword;  for aa in (select keyword from dic_keyword) loop   select  replace(filterWorld, aa.keyword, ‘*‘) into filterWorld from dual;    keyCount := keyCount - 1;    exit when keyCount = 0;  end loop;  return(filterWorld);end;