最新回答 / 马燊 create or replace trigger no_time_newdate before insert on unifier_uxqa0401begin if to_char(sysdate,'day') in('saturday','sunday') or to_number(to_char(sysdate,'hh24')) not between 9 and 18 --禁止insert raise_application_error(-20001,'非工作时间禁止写入'); ...