--alter trigger tr_befor_insert disable;--禁用某触发器
create or replace trigger tr_insert_emp
before insert
on emp for each row
begin
insert into A values(:new.empno,:new.ename,:new.job,:new.mgr,:new.hiredate,:new.sal,:new.comm,:new.deptno);
end;
insert into emp values(1,'A','Soft',4,to_date('2011-09-12','yyyy-MM-dd'),1,1,20);
select * from A;
:new.data ,:old.data
基于系统事件与用户处事件的触发器、
比如在......
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