----触发器---

---创建中间插入的表

create table session_history tablespace bap_data

as (select sid,username,program,machine,'000.000.000.000'ipadd,sysdate moditime from v$session where 0=1);

 

---创建触发器---只要登陆数据库就触发

 

create or replace trigger on_logon_trigger

 after logon on database

 begin

insert into session_history select sid,username,program,machine,sys_context('userenv','ip_address'),sysdate from v$session where audsid = userenv('sessionid');

end;

 

---查询登陆信息

select * from  session_history q where q.username not in ('SYS');

 

 

-------触发器针对对数据库表做修改-------

1.创建存触发触发器数据的表

 create table test.trigger_test tablespace test_data as (select sid,username,program,machine,'000.000.000.000'ipadd,sysdate moditime from v$session where 0=1);

 2.创建对应触发器

create or replace trigger test.T_test_trigger

 before delete or update on test.T_test

 for each row

begin

 insert into test.trigger_test select sid,username,program,machine,sys_context('userenv','ip_address'),sysdate from v$session where audsid = userenv('sessionid');

 end;

 3.给触发器所有者赋权限

grant select,update,insert on bap.trigger_test to test;

4.测试触发器是否生效

 update  BAP.T_test qq set qq.bnk_no='' where  BNK_CD='888';

5.验证是否有数据入表

 select * from test.trigger_test;

6.其他操作

--DROP trigger  test.T_test_trigger

select * from dba_triggers ww where ww.owner=TEST;