分类目录归档：Oracle

使用dul恢复asm中数据

发表于 2012 年 6 月 25 日 由 惜分飞

大家都知道新版本的odu可以在asm不启动的情况下挖数据文件,其实在新版本的dul中,也可以绕过asm挖数据文件,而且操作起来更加方便.
环境准备

SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production

--查询asm disk
SQL> select group_number,DISK_NUMBER,PATH
  2  from v$asm_disk where group_number<>0;
 
GROUP_NUMBER DISK_NUMBER PATH
------------ ----------- --------------------
           1           0 /dev/raw/raw2
           1           1 /dev/raw/raw3 

SQL> conn chf/xifenfei
Connected.

--创建测试表
SQL> create table t_xifenfei
  2  as
  3   select object_id,object_name from dba_objects where rownum<10;

Table created.

SQL> select * from t_xifenfei;

 OBJECT_ID OBJECT_NAME
---------- --------------------------------
        44 I_USER1
        28 CON$
        15 UNDO$
        29 C_COBJ#
         3 I_OBJ#
        25 PROXY_ROLE_DATA$
        39 I_IND1
        51 I_CDEF2

9 rows selected.

--数据文件
SQL> select name from v$datafile;

NAME
----------------------------------------------------------------------
+XIFENFEI/asm10g/datafile/system.256.786578479
+XIFENFEI/asm10g/datafile/undotbs1.258.786578481
+XIFENFEI/asm10g/datafile/sysaux.257.786578481
+XIFENFEI/asm10g/datafile/users.259.786578481
+XIFENFEI/asm10g/datafile/xff.265.786578851

--关闭数据库
SQL> shutdown immediate;
ORA-01031: insufficient privileges
SQL> conn / as sysdba
Connected.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

--关闭asm
[oracle@xifenfei home]$ export ORACLE_SID=+ASM
[oracle@xifenfei home]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 22 00:18:18 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> shutdown immediate
ASM diskgroups dismounted
ASM instance shutdown
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
[oracle@xifenfei home]$ ps -ef|grep ASM
oracle   18885 10980  0 00:18 pts/0    00:00:00 grep ASM
[oracle@xifenfei home]$ ps -ef|grep ora_
oracle   18887 10980  0 00:18 pts/0    00:00:00 grep ora_

初始化参数配置

[oracle@xifenfei dul]$ vi init.dul 
db_block_size=8192
control_file = control.dul
dc_segments=100000
osd_word_size = 32
osd_big_endian_flag=false
osd_dba_file_bits=10
osd_c_struct_alignment=32
osd_file_leader_size=1
osd_word_size = 32
dc_columns=2000000
dc_tables=10000
dc_objects=1000000
dc_users=400
dc_segments=100000
control_file = control.dul
db_block_size=8192
export_mode=false
compatible=10
BUFFER=10485760

控制文件配置

[oracle@xifenfei dul]$ more control.dul 
disk /dev/raw/raw2
disk /dev/raw/raw3  
0          1 +XIFENFEI/asm10g/datafile/system.256.786578479
1          2 +XIFENFEI/asm10g/datafile/undotbs1.258.786578481
2          3 +XIFENFEI/asm10g/datafile/sysaux.257.786578481
4          4 +XIFENFEI/asm10g/datafile/users.259.786578481
6          5 +XIFENFEI/asm10g/datafile/xff.265.786578851

使用dul恢复表测试

--启动dul
[oracle@xifenfei dul]$ ./dul

Data UnLoader: 10.2.0.5.13 - Internal Only - on Thu Jun 21 23:49:46 2012
with 64-bit io functions

Copyright (c) 1994 2012 Bernard van Duijnen All rights reserved.

 Strictly Oracle Internal Use Only


DUL: Warning: Recreating file "dul.log"
Disk group XIFENFEI, dul group_cid 0
Discovered disk /dev/raw/raw2 as diskgroup XIFENFEI, disk number 0 size 784 Mb File1 starts at 2, dul_disk_cid 0
Discovered disk /dev/raw/raw3 as diskgroup XIFENFEI, disk number 1 size 7059 Mb without File1 meta data, dul_disk_cid 1

DUL: Warning: Dictionary cache DC_ASM_EXTENTS is empty
DUL: Error: Filedir block not allocated, file does not exist
DUL: Error: Could not load asm meta data for group XIFENFEI file 9
Oracle data file size 503324672, block size 8192
Found db_id = 123111609
Found db_name = ASM10G
Oracle data file size 26222592, block size 8192
Oracle data file size 251666432, block size 8192
Oracle data file size 5251072, block size 8192

--加载数据字典
DUL> bootstrap;
Probing file = 1, block = 377
. unloading table                BOOTSTRAP$
DUL: Warning: block number is non zero but marked deferred trying to process it anyhow
      57 rows unloaded
DUL: Warning: Dictionary cache DC_BOOTSTRAP is empty
Reading BOOTSTRAP.dat 57 entries loaded
Parsing Bootstrap$ contents
DUL: Warning: Recreating file "dict.ddl"
Generating dict.ddl for version 10
 OBJ$: segobjno 18, file 1 block 121
 TAB$: segobjno 2, tabno 1, file 1  block 25
 COL$: segobjno 2, tabno 5, file 1  block 25
 USER$: segobjno 10, tabno 1, file 1  block 89
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$   50806 rows unloaded
. unloading table                      TAB$    1560 rows unloaded
. unloading table                      COL$   54822 rows unloaded
. unloading table                     USER$      57 rows unloaded
Reading USER.dat 57 entries loaded
Reading OBJ.dat 50806 entries loaded and sorted 50806 entries
Reading TAB.dat 1560 entries loaded
Reading COL.dat 54822 entries loaded and sorted 54822 entries
Reading BOOTSTRAP.dat 57 entries loaded

DUL: Warning: Recreating file "dict.ddl"
Generating dict.ddl for version 10
 OBJ$: segobjno 18, file 1 block 121
 TAB$: segobjno 2, tabno 1, file 1  block 25
 COL$: segobjno 2, tabno 5, file 1  block 25
 USER$: segobjno 10, tabno 1, file 1  block 89
 TABPART$: segobjno 266, file 1 block 2121
 INDPART$: segobjno 271, file 1 block 2161
 TABCOMPART$: segobjno 288, file 1 block 2297
 INDCOMPART$: segobjno 293, file 1 block 2345
 TABSUBPART$: segobjno 278, file 1 block 2217
 INDSUBPART$: segobjno 283, file 1 block 2257
 IND$: segobjno 2, tabno 3, file 1  block 25
 ICOL$: segobjno 2, tabno 4, file 1  block 25
 LOB$: segobjno 2, tabno 6, file 1  block 25
 COLTYPE$: segobjno 2, tabno 7, file 1  block 25
 TYPE$: segobjno 181, tabno 1, file 1  block 1297
 COLLECTION$: segobjno 181, tabno 2, file 1  block 1297
 ATTRIBUTE$: segobjno 181, tabno 3, file 1  block 1297
 LOBFRAG$: segobjno 299, file 1 block 2393
 LOBCOMPPART$: segobjno 302, file 1 block 2425
 UNDO$: segobjno 15, file 1 block 105
 TS$: segobjno 6, tabno 2, file 1  block 57
 PROPS$: segobjno 96, file 1 block 721
Running generated file "@dict.ddl" to unload the dictionary tables
. unloading table                      OBJ$
DUL: Warning: Recreating file "OBJ.ctl"
   50806 rows unloaded
. unloading table                      TAB$
DUL: Warning: Recreating file "TAB.ctl"
    1560 rows unloaded
. unloading table                      COL$
DUL: Warning: Recreating file "COL.ctl"
   54822 rows unloaded
. unloading table                     USER$
DUL: Warning: Recreating file "USER.ctl"
      57 rows unloaded
. unloading table                  TABPART$      72 rows unloaded
. unloading table                  INDPART$      80 rows unloaded
. unloading table               TABCOMPART$       0 rows unloaded
. unloading table               INDCOMPART$       0 rows unloaded
. unloading table               TABSUBPART$       0 rows unloaded
. unloading table               INDSUBPART$       0 rows unloaded
. unloading table                      IND$    2213 rows unloaded
. unloading table                     ICOL$    3618 rows unloaded
. unloading table                      LOB$     528 rows unloaded
. unloading table                  COLTYPE$    1688 rows unloaded
. unloading table                     TYPE$    1885 rows unloaded
. unloading table               COLLECTION$     551 rows unloaded
. unloading table                ATTRIBUTE$    7051 rows unloaded
. unloading table                  LOBFRAG$       1 row  unloaded
. unloading table              LOBCOMPPART$       0 rows unloaded
. unloading table                     UNDO$      21 rows unloaded
. unloading table                       TS$       7 rows unloaded
. unloading table                    PROPS$      27 rows unloaded
Reading USER.dat 57 entries loaded
Reading OBJ.dat 50806 entries loaded and sorted 50806 entries
Reading TAB.dat 1560 entries loaded
Reading COL.dat 54822 entries loaded and sorted 54822 entries
Reading TABPART.dat 72 entries loaded and sorted 72 entries
Reading TABCOMPART.dat 0 entries loaded and sorted 0 entries
Reading TABSUBPART.dat 0 entries loaded and sorted 0 entries
Reading INDPART.dat 80 entries loaded and sorted 80 entries
Reading INDCOMPART.dat 0 entries loaded and sorted 0 entries
Reading INDSUBPART.dat 0 entries loaded and sorted 0 entries
Reading IND.dat 2213 entries loaded
Reading LOB.dat 528 entries loaded
Reading ICOL.dat 3618 entries loaded
Reading COLTYPE.dat 1688 entries loaded
Reading TYPE.dat 1885 entries loaded
Reading ATTRIBUTE.dat 7051 entries loaded
Reading COLLECTION.dat 551 entries loaded
Reading BOOTSTRAP.dat 57 entries loaded
Reading LOBFRAG.dat 1 entries loaded and sorted 1 entries
Reading LOBCOMPPART.dat 0 entries loaded and sorted 0 entries
Reading UNDO.dat 21 entries loaded
Reading TS.dat 7 entries loaded
Reading PROPS.dat 27 entries loaded
Database character set is ZHS16GBK
Database national character set is AL16UTF16

--恢复表
DUL> unload table chf.t_xifenfei;
. unloading table                T_XIFENFEI       9 rows unloaded

验证恢复数据库

[oracle@xifenfei dul]$ ll CHF_T_XIFENFEI*
-rw-r--r-- 1 oracle oinstall  269 Jun 22 00:26 CHF_T_XIFENFEI.ctl
-rw-r--r-- 1 oracle oinstall  134 Jun 22 00:26 CHF_T_XIFENFEI.dat
[oracle@xifenfei dul]$ more CHF_T_XIFENFEI.ctl 
load data
CHARACTERSET UTF8
infile 'CHF_T_XIFENFEI.dat'
insert
into table "CHF"."T_XIFENFEI"
fields terminated by whitespace
(
  "OBJECT_ID"                        CHAR(2) enclosed by X'22'       
 ,"OBJECT_NAME"                      CHAR(16) enclosed by X'22'      
)
[oracle@xifenfei dul]$ more CHF_T_XIFENFEI.dat
"20" "ICOL$"
"44" "I_USER1"
"28" "CON$"
"15" "UNDO$"
"29" "C_COBJ#"
"3" "I_OBJ#"
"25" "PROXY_ROLE_DATA$"
"39" "I_IND1"
"51" "I_CDEF2"
发表在 非常规恢复 | 标签为 , , | 评论关闭

spfile被覆盖导致ORA-600[kmgs_parameter_update_timeout_1]

发表于 2012 年 6 月 25 日 由 惜分飞

数据库出现如下错误ORA-00600[kmgs_parameter_update_timeout_1]

Thu Jun 21 17:42:45 BEIST 2012
alter tablespace TS_TAB_WG_SYSMGR_01 add datafile '/dev/rvgoradata3_1_01'
Thu Jun 21 17:42:58 BEIST 2012
Completed: alter tablespace TS_TAB_WG_SYSMGR_01 add datafile '/dev/rvgoradata3_1_01'
Thu Jun 21 17:45:31 BEIST 2012
System State dumped to trace file /oracle/app/oracle/admin/bomc3/bdump/bomc3_mmon_19530138.trc
Thu Jun 21 17:45:42 BEIST 2012
Errors in file /oracle/app/oracle/admin/bomc3/bdump/bomc3_mmon_19530138.trc:
ORA-00600: internal error code, arguments: [kmgs_parameter_update_timeout_1], [1565], [], [], [], [], [], []
ORA-01565: error in identifying file '/dev/rvgoradata3_1_01'
ORA-27086: unable to lock file - already in use
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 8
Additional information: 18874484
Thu Jun 21 17:45:49 BEIST 2012
Errors in file /oracle/app/oracle/admin/bomc3/bdump/bomc3_dbw0_18874484.trc:
ORA-00600: internal error code, arguments: [ksprcvsp1], [0], [0], [], [], [], [], []
Thu Jun 21 17:45:52 BEIST 2012
Errors in file /oracle/app/oracle/admin/bomc3/bdump/bomc3_dbw0_18874484.trc:
ORA-00600: internal error code, arguments: [kmgs_parameter_update_timeout_1], [600], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [ksprcvsp1], [0], [0], [], [], [], [], []
Thu Jun 21 17:45:53 BEIST 2012
Errors in file /oracle/app/oracle/admin/bomc3/bdump/bomc3_dbw0_18874484.trc:
ORA-00600: internal error code, arguments: [kmgs_parameter_update_timeout_1], [600], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [ksprcvsp1], [0], [0], [], [], [], [], []
Thu Jun 21 17:45:53 BEIST 2012
DBW0: terminating instance due to error 471
Instance terminated by DBW0, pid = 18874484

通过这个错误可以看出大概：TS_TAB_WG_SYSMGR_01增加数据文件/dev/rvgoradata3_1_01成功后,然后mmon启动收集统计信息,读取spfile文件信息出错.最后dbw进程读取spfile文件出错,使得dbwn进程终止,从而数据库abort掉.通过这些信息,初步怀疑是增加数据文件的时候,错误的把spfile文件的裸设备作为一个新数据文件增加到数据库中,导致spfile被覆盖,从而出现mmon和dbwn访问spfile出错.

找出证据
如果spfile使用裸设备而且文件名是dev/rvgoradata3_1_01,那很可能是通过init_SID.ora中的spfile项实现,查找该文件内容果然发现

[zwq_acc1:/home/xifenfei]cat initbomc3.ora
spfile='/dev/rvgoradata3_1_01'

通过这些可以确定是用户增加数据文件时,错误的把spfile文件当中新的控制问及爱你增加到相关表空间中导致该问题.

解决办法
1.如果有备份spfile文件,使用备份spfile文件
2.如果有pfile文件,使用pfile创建spfile
3.如果上面两个都没有,那么使用alert中相关信息创建pfile文件然后创建spfile

发表在 ORA-xxxxx | 标签为 , | 2 条评论

实现trigger集中记录所有库ddl操作

发表于 2012 年 6 月 20 日 由 惜分飞

今天客户说了一个我感觉有意思的需求:在一个库上的一张表记录所有库的ddl操作,实现方式：在一个库上建立表和触发器,其他库上通过dblink+同义词+触发器实现ddl操作记录到远程的表中.他当时写了一个触发器,但是有错误,想让我协助解决.在我们的一起努力下,解决了该触发器在dblink同义词的库上出错的问题.我这里测试使用的是10g的库做为存储所有库的ddl记录的库,11g库做为一个通过dblink插入ddl操作记录的库.
在10g数据库库中操作
1.创建记录ddl操作表

SQL> conn chf/xifenfei
Connected.
SQL> create table t_ddl_audit(
  2  db_name varchar2(30),
  3  login_user varchar2(30),
  4  ddl_time date,
  5  ip_address varchar2(20),
  6  audsid varchar2(20),
  7  schema_user varchar2(30),
  8  schema_object varchar2(40),
  9  login_tool varchar2(40),
 10  os_user varchar2(40),
 11  ddl_sql varchar2(4000));

Table created.

2.创建触发器

SQL> create or replace trigger tri_ddl_audit
  2    before ddl on database
  3  declare
  4    n           number;
  5    str_stmt    varchar2(4000);
  6    sql_text    ora_name_list_t;
  7    l_trace     number;
  8    v_module    varchar2(50);
  9    v_action    varchar2(50);
 10    str_session v$session%rowtype;
 11  begin
 12    n := ora_sql_txt(sql_text);
 13    for i in 1 .. n loop
 14      str_stmt := substr(str_stmt || sql_text(i), 1, 3000);
 15    end loop;
 16    dbms_application_info.READ_MODULE(v_module, v_action);
 17    INSERT INTO chf.t_ddl_audit
 18      (db_name,
 19       login_user,
 20       ddl_time,
 21       ip_address,
 22       audsid,
 23       schema_user,
 24       schema_object,
 25       login_tool,
 26       os_user,
 27       ddl_sql)
 28    VALUES
 29      (sys_context('USERENV', 'db_name'),
 30       ora_login_user,
 31       SYSDATE,
 32       sys_context('USERENV', 'IP_ADDRESS'),
 33       userenv('SESSIONID'),
 34       ora_dict_obj_owner,
 35       ora_dict_obj_name,
 36       v_module,
 37       sys_context('userenv', 'os_user'),
 38       str_stmt);
 39  exception
 40    when no_data_found then
 41      null;
 42  end;
 43  /

Trigger created.

3.测试触发器

SQL> conn chf/xifenfei
Connected.
SQL> create table t_xff as select * from dba_tables where rownum=1;

Table created.

SQL> select db_name,login_user,ddl_sql from t_ddl_audit;

DB_NAME                        LOGIN_USER
------------------------------ ------------------------------
DDL_SQL
-----------------------------------------------------------------
XFF                            CHF
create table t_xff as select * from dba_tables where rownum=1

在11g数据库中操作
1.创建dblink和同义词

SQL> create database link "ora10g_dblink"
  2   connect to chf
  3    identified by "xifenfei"
  4     using 'ora10g';

Database link created.

SQL> create  synonym t_ddl_audit for t_ddl_audit@ora10g_dblink;

Synonym created.

2.第一次创建触发器

SQL> create or replace trigger tri_ddl_audit
  2    before ddl on database
  3  declare
  4    n           number;
  5    str_stmt    varchar2(4000);
  6    sql_text    ora_name_list_t;
  7    l_trace     number;
  8    v_module    varchar2(50);
  9    v_action    varchar2(50);
 10    str_session v$session%rowtype;
 11  begin
 12    n := ora_sql_txt(sql_text);
 13    for i in 1 .. n loop
 14      str_stmt := substr(str_stmt || sql_text(i), 1, 3000);
 15    end loop;
 16    dbms_application_info.READ_MODULE(v_module, v_action);
 17    INSERT INTO t_ddl_audit
 18      (db_name,
 19       login_user,
 20       ddl_time,
 21       ip_address,
 22       audsid,
 23       schema_user,
 24       schema_object,
 25       login_tool,
 26       os_user,
 27       ddl_sql)
 28    VALUES
 29      (sys_context('USERENV', 'db_name'),
 30       ora_login_user,
 31       SYSDATE,
 32       sys_context('USERENV', 'IP_ADDRESS'),
 33       userenv('SESSIONID'),
 34       ora_dict_obj_owner,
 35       ora_dict_obj_name,
 36       v_module,
 37       sys_context('userenv', 'os_user'),
 38       str_stmt);
 39  exception
 40    when no_data_found then
 41      null;
 42  end;
 43  /

Trigger created.

3.测试触发器

SQL> create table t_xff as select * from dba_objects where rownum<10;
create table t_xff as select * from dba_objects where rownum<10
                                    *
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-02070: database  does not support  in this context
ORA-06512: at line 15

出现ORA-02070错误,估计是类此sys_context(‘userenv’, ‘os_user’)导致。

4.第二次创建触发器

SQL> create or replace trigger tri_ddl_audit
  2    before ddl on database
  3  declare
  4    n           number;
  5    str_stmt    varchar2(4000);
  6    sql_text    ora_name_list_t;
  7    l_trace     number;
  8    v_module    varchar2(50);
  9    v_action    varchar2(50);
 10    v_db_name   varchar2(50);
 11    v_ip_addr   varchar2(50);
 12    v_os        varchar2(50);
 13    v_session_id varchar2(50);
 14    str_session v$session%rowtype;
 15  begin
 16    n := ora_sql_txt(sql_text);
 17    for i in 1 .. n loop
 18      str_stmt := substr(str_stmt || sql_text(i), 1, 3000);
 19    end loop;
 20    dbms_application_info.READ_MODULE(v_module, v_action);
 21    v_db_name :=sys_context('USERENV', 'db_name');
 22    v_ip_addr :=sys_context('USERENV', 'IP_ADDRESS');
 23    v_os:=sys_context('userenv', 'os_user');
 24    v_session_id:=userenv('SESSIONID');
 25    INSERT INTO t_ddl_audit
 26      (db_name,
 27       login_user,
 28       ddl_time,
 29       ip_address,
 30       audsid,
 31       schema_user,
 32       schema_object,
 33       login_tool,
 34       os_user,
 35       ddl_sql)
 36    VALUES
 37      (v_db_name,
 38       ora_login_user,
 39       SYSDATE,
 40       v_ip_addr,
 41      v_session_id,
 42       ora_dict_obj_owner,
 43       ora_dict_obj_name,
 44       v_module,
 45       v_os,
 46       str_stmt);
 47  exception
 48    when no_data_found then
 49      null;
 50  end;
 51  /

Trigger created.

5.继续测试触发器

SQL> drop table t3;
drop table t3
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-02069: global_names parameter must be set to TRUE for this operation
ORA-06512: at line 23

根据ORA-02069,查询资料发现是通过dblink插入数据使用了变量和常量的方式混合使用导致该错误,修改触发器全部使用变量方式

6.第三次创建触发器

SQL> create or replace trigger tri_ddl_audit
  2    before ddl on database
  3  declare
  4    n           number;
  5    str_stmt    varchar2(4000);
  6    sql_text    ora_name_list_t;
  7    l_trace     number;
  8    v_module    varchar2(50);
  9    v_action    varchar2(50);
 10    v_db_name   varchar2(50);
 11    v_ip_addr   varchar2(50);
 12    v_os        varchar2(50);
 13    v_session_id varchar2(50);
 14    v_loginuser    varchar2(50);
 15     v_obj_name varchar2(50);
 16    v_owner    varchar2(50);
 17    str_session v$session%rowtype;
 18  begin
 19    n := ora_sql_txt(sql_text);
 20    for i in 1 .. n loop
 21      str_stmt := substr(str_stmt || sql_text(i), 1, 3000);
 22    end loop;
 23    dbms_application_info.READ_MODULE(v_module, v_action);
 24    v_db_name :=sys_context('USERENV', 'db_name');
 25    v_ip_addr :=sys_context('USERENV', 'IP_ADDRESS');
 26    v_os:=sys_context('userenv', 'os_user');
 27    v_session_id:=userenv('SESSIONID');
 28    v_loginuser:= ora_login_user;
 29    v_owner:=ora_dict_obj_owner;
 30    v_obj_name:=ora_dict_obj_name;
 31    INSERT INTO t_ddl_audit
 32      (db_name,
 33       login_user,
 34       ddl_time,
 35       ip_address,
 36       audsid,
 37       schema_user,
 38       schema_object,
 39       login_tool,
 40       os_user,
 41       ddl_sql)
 42    VALUES
 43      (v_db_name,
 44       v_loginuser,
 45       SYSDATE,
 46       v_ip_addr,
 47      v_session_id,
 48       v_owner,
 49       v_obj_name,
 50       v_module,
 51       v_os,
 52       str_stmt);
 53  exception
 54    when no_data_found then
 55      null;
 56  end;   
 57  /

Trigger created.

7.测试触发器

SQL> create table t_xff11 as select * from dba_tables where rownum<10;

Table created.

SQL> select db_name,login_user,ddl_sql from t_ddl_audit;

DB_NAME                        LOGIN_USER
------------------------------ ------------------------------
DDL_SQL
-----------------------------------------------------------------
ora11g                         CHF
create table t_xff11 as select * from dba_tables where rownum<10

XFF                            CHF
create table t_xff as select * from dba_tables where rownum=1

补充说明
这个方案个人感觉是一个实验室中的方案,在实际的生成环境中很难应用上
1.trigger记录ddl操作本身效率不高
2.如果某个库不能访问存储ddl操作的表的数据库,将导致该数据库所有ddl操作hang住,从而可能使得该数据库hang住的风险.

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