我正在尝试创建一个触发器,例如
CREATE trigger trg_DEPT_ORGS_id
before insert on DEPT_ORGS
for each row
begin
select DEPT_ORGS_id_seq.nextval
into :new.dep_id
from dual;
end;
但它显示错误trigger exists already
。我怎样才能看到触发器。