简单利用触发器监控表记录的更改

---显示授权给所有用户查询这两个视图
grant select on sys.v_$session to public;
grant select on sys.v_$sqlarea to public;

---创建日志记录表
create table log_monitor_tab(sql_text varchar2(400),
username varchar2(30),
schemaname varchar2(30),
osuser varchar2(30),
ip_address varchar2(15),
machine varchar2(50),
program varchar2(50),
modifytime date);

----创建触发器
create or replace trigger tri_monitor_tab
before insert or update or delete
on table_name --填入相应的表名
for each row
begin
insert into log_monitor_tab
select sq.sql_text,
se.username,
se.schemaname,
se.osuser,
SYS_CONTEXT('USERENV', 'IP_ADDRESS'),
se.machine,
se.program,
sysdate
from v$sqlarea sq, v$session se
where sq.address = se.sql_address
and se.sid = userenv('sid');
end;

---查询日志表log_monitor_tab记录
select * from log_monitor_tab order by modifytime asc;