前言：
db中有一张表的数据老是紊乱，猜猜是经历过drop、create的数据同步操作，但是现在谁也不知道在哪里操作的，所以准备做一个触发器去记录下是哪个应用服务器那个db账号操作的。
包括各种DDL操作以及各种数据库事件，ddl包括create、alter、drop、rename、grant、revoke、audit、noaudit、commit、truncate、analyze、associate statistics、disassociate statistis。触发时间可以before或者after
3.2 建立触发器记录的表-- Create table create table Z_TRIG_SYS ( lt DATE, sid NUMBER, serial# NUMBER, username VARCHAR2(30), oSUSEr VARCHAR2(64), machine VARCHAR2(32), terminal VARCHAR2(16), object_name VARCHAR2(200), ora_sysevent VARCHAR2(200), program VARCHAR2(64), sqltext VARCHAR2(4000), status VARCHAR2(30), client_ip VARCHAR2(60), ora_dbname VARCHAR2(60), ora_client_ip_address VARCHAR2(60) ); -- Add comments to the columns comment on column Z_TRIG_SYS.lt is '录入时间'; comment on column Z_TRIG_SYS.sid is '当前session的id'; comment on column Z_TRIG_SYS.serial# is 'sid的序列号，顺序自增'; comment on column Z_TRIG_SYS.username is '登录的用户名'; comment on column Z_TRIG_SYS.osuser is '操作者的os系统'; comment on column Z_TRIG_SYS.machine is '操作者的机器名称'; comment on column Z_TRIG_SYS.object_name is '操作对象名称'; comment on column Z_TRIG_SYS.ora_sysevent is '操作事件'; comment on column Z_TRIG_SYS.sqltext is '执行的sql片段'; comment on column Z_TRIG_SYS.client_ip is '客户端ip'; comment on column Z_TRIG_SYS.ora_dbname is '执行的数据库'; comment on column Z_TRIG_SYS.ora_client_ip_address is '客户端ip地址';3.3 建立system级别触发器
create or replace trigger trig_system
after drop on database
begin
if ora_login_user!='system' then
insert into z_trig_sys(
lt ,
sid ,
serial# ,
username ,
osuser ,
machine ,
terminal ,
object_name ,
ora_sysevent ,
program ,
sqltext ,
status ,
client_ip ,
ora_dbname ,
ora_client_ip_address )
select sysdate,
s.SID,
s.SERIAL#,
s.USERNAME,
s.OSUSER,
s.MACHINE,
s.TERMINAL,
s.PROGRAM,
ora_dict_obj_name,
ora_sysevent,
'drop object on database',
'',
sys_context('userenv','ip_address'),
ora_database_name,
ora_client_ip_address
from v$sql q, v$session s
where s.audsid=(select userenv('SESSIONID') from dual)
and s.prev_sql_addr=q.address
AND s.PREV_HASH_VALUE = q.hash_value;
-- commit;
-- AND sys_context('userenv','ip_address') !='192.168.180.106';
end if;
end trig_system;
3.4，调试报错
ORA-00604: error occurred at recursive SQL level 1
ORA-04092: cannot COMMIT in a trigger
去掉触发器中的commit;
4，查看监控结果，如下所示：SQL> create table zz_back(id number); Table created SQL> insert into zz_back values(1); 1 row inserted SQL> commit; Commit complete SQL> drop table zz_back; Table dropped SQL> select * from z_trig_sys; LT SID SERIAL# USERNAME OSUSER MACHINE TERMINAL OBJECT_NAME ORA_SYSEVENT PROGRAM SQLTEXT STATUS CLIENT_IP ORA_DBNAME ORA_CLIENT_IP_ADDRESS ----------- ---------- ---------- ------------------------------ ---------------------------------------------------------------- -------------------------------- ---------------- -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- ---------------------------------------------------------------- -------------------------------------------------------------------------------- ------------------------------ ------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------ 2015/11/4 1 787 63023 POWERDESK Administrator WORKGROUPWIN-TIMMAN WIN-TIMMAN plsqldev.exe ZZ_BACK DROP drop object on database 192.168.120.181 POWERDES SQL>
看到有记录了，但是有一些没有取到值，比如ora_client_ip_address等，有待继续完善
：