bbed初体验

Posted liguangsunls

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篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了bbed初体验相关的知识,希望对你有一定的参考价值。

bbed能够直接查看或改动数据文件,听起来非常强大。以下体验一下。安装方法网上一搜一大把,我的环境是centos+10G的

bbed參考文档:http://pan.baidu.com/s/1hqCC6pu



--測试之前,已经创建了ms1用户和表空间mssm

create tablespace mssm

datafile ‘‘/u01/oracle/oradata/gname/mssm.dbf 
size 50M
extent management local

segment space management manual;

create user ms1 identified by ms1 default tablespace mssm;



[[email protected] sql]$ sqlplus / as sysdba 



SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 4 15:32:23 2014


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> conn ms1/ms1                
Connected.
SQL> insert into t values(1,‘a‘);


1 row created.


SQL> insert into t values(2,‘b‘);


1 row created.


SQL> insert into t values(999,‘seven‘);


1 row created.


SQL> commit;


Commit complete.


SQL> get getrowidinfo
  1  select 
  2  t.*,
  3  --rowid,
  4  dbms_rowid.rowid_type(rowid) rowid_type,
  5  dbms_rowid.rowid_relative_fno(rowid) file_no,
  6  dbms_rowid.rowid_block_number(rowid) block_no,
  7  dbms_rowid.rowid_row_number(rowid) row_no,
  8  ora_rowscn,
  9  dbms_rowid.rowid_object(rowid) object_no
 10* from &owner..&table t;




SQL> @getrowidinfo
Enter value for owner: ms1
Enter value for table: t
old   8: from &owner..&table
new   8: from ms1.t


        RN ROWID_TYPE    FILE_NO   BLOCK_NO     ROW_NO ORA_ROWSCN  OBJECT_NO
---------- ---------- ---------- ---------- ---------- ---------- ----------
         1          1          7         10          0     506534      52503
         2          1          7         10          1     506534      52503
         3          1          7         10          2     506534      52503




SQL> select DEFAULT_TABLESPACE from dba_users where username=user;


DEFAULT_TABLESPACE
------------------------------------------------------------
MSSM


SQL> @getfile   


   FILE_ID FILE_NAME                                          TABLESPACE_NAME               M
---------- -------------------------------------------------- -------------------- ----------
         5 /u01/oracle/oradata/gname/example01.dbf            EXAMPLE                     100
         7 /u01/oracle/oradata/gname/mssm.dbf                 MSSM                         50
         3 /u01/oracle/oradata/gname/sysaux01.dbf             SYSAUX                      240
         1 /u01/oracle/oradata/gname/system01.dbf             SYSTEM                      480
         6 /u01/oracle/oradata/gname/tab.dbf                  TAB                         100
         2 /u01/oracle/oradata/gname/undotbs01.dbf            UNDOTBS1                     30
         4 /u01/oracle/oradata/gname/users01.dbf              USERS                         5



[[email protected] sql]$ sqlplus / as sysdba 


SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jul 4 16:42:51 2014


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
Database closed.
Database dismounted.
ORACLE instance shut down.


[[email protected] sql]$ cp /u01/oracle/oradata/gname/mssm.dbf /u01/oracle/oradata/gname/mssm.dbf_bak20140704
[[email protected] sql]$ ll /u01/oracle/oradata/gname/mssm*
-rw-r-----. 1 oracle oinstall 52436992 Jul  4 16:44 /u01/oracle/oradata/gname/mssm.dbf
-rw-r-----. 1 oracle oinstall 52436992 Jul  4 16:45 /u01/oracle/oradata/gname/mssm.dbf_bak20140704



SQL> select file#||‘ ‘||name||‘ ‘||bytes from v$datafile ;


FILE#||‘‘||NAME||‘‘||BYTES
--------------------------------------------------------------------------------
1 /u01/oracle/oradata/gname/system01.dbf 503316480
2 /u01/oracle/oradata/gname/undotbs01.dbf 31457280
3 /u01/oracle/oradata/gname/sysaux01.dbf 251658240
4 /u01/oracle/oradata/gname/users01.dbf 5242880
5 /u01/oracle/oradata/gname/example01.dbf 104857600
6 /u01/oracle/oradata/gname/tab.dbf 104857600
7 /u01/oracle/oradata/gname/mssm.dbf 52428800


7 rows selected.


[[email protected] /]$ cd /u01/bbed/
[[email protected] bbed]$ vi filelist.txt
1 /u01/oracle/oradata/gname/system01.dbf 503316480
2 /u01/oracle/oradata/gname/undotbs01.dbf 31457280
3 /u01/oracle/oradata/gname/sysaux01.dbf 251658240
4 /u01/oracle/oradata/gname/users01.dbf 5242880
5 /u01/oracle/oradata/gname/example01.dbf 104857600
6 /u01/oracle/oradata/gname/tab.dbf 104857600
7 /u01/oracle/oradata/gname/mssm.dbf 52428800
999 /u01/oracle/oradata/gname/mssm.dbf_bak20140704 52428800


[[email protected] bbed]$ vi bbed.par
blocksize=8192
listfile=/u01/bbed/filelist.txt
mode=edit


[[email protected] bbed]$ bbed parfile=/u01/bbed/bbed.par
Password: 


BBED: Release 2.0.0.0.0 - Limited Production on Fri Jul 4 17:05:34 2014


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


************* !!! For Oracle Internal Use only !!! ***************


BBED> show
        FILE#           1
        BLOCK#          1
        OFFSET          0
        DBA             0x00400001 (4194305 1,1)
        FILENAME        /u01/oracle/oradata/gname/system01.dbf
        BIFILE          bifile.bbd
        LISTFILE        /u01/bbed/filelist.txt
        BLOCKSIZE       8192
        MODE            Edit
        EDIT            Unrecoverable
        IBASE           Dec
        OBASE           Dec
        WIDTH           80
        COUNT           512
        LOGFILE         log.bbd
        SPOOL           No


BBED> info 
 File#  Name                                                        Size(blks)
 -----  ----                                                        ----------
     1  /u01/oracle/oradata/gname/system01.dbf                           61440
     2  /u01/oracle/oradata/gname/undotbs01.dbf                           3840
     3  /u01/oracle/oradata/gname/sysaux01.dbf                           30720
     4  /u01/oracle/oradata/gname/users01.dbf                              640
     5  /u01/oracle/oradata/gname/example01.dbf                          12800
     6  /u01/oracle/oradata/gname/tab.dbf                                12800
     7  /u01/oracle/oradata/gname/mssm.dbf                                6400
   999  /u01/oracle/oradata/gname/mssm.dbf                                6400


BBED> set file 7 block 10
        FILE#           7
        BLOCK#          10


BBED> show
        FILE#           7
        BLOCK#          10
        OFFSET          0
        DBA             0x01c0000a (29360138 7,10)
        FILENAME        /u01/oracle/oradata/gname/mssm.dbf
        BIFILE          bifile.bbd
        LISTFILE        /u01/bbed/filelist.txt
        BLOCKSIZE       8192
        MODE            Edit
        EDIT            Unrecoverable
        IBASE           Dec
        OBASE           Dec
        WIDTH           80
        COUNT           512
        LOGFILE         log.bbd
        SPOOL           No


BBED> dump file 7 block 10
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets:    0 to  511           Dba:0x01c0000a
------------------------------------------------------------------------
 06a20000 0a00c001 a6ba0700 00000706 75f20000 01000000 17cd0000 96ba0700 
 00000000 02000300 00000000 02002500 0d010000 e8008000 3b010300 03200000 
 a6ba0700 00000000 00000000 00000000 00000000 00000000 00000000 00010300 
 ffff1800 831f691f 691f0000 0300981f 901f831f 00001300 09001c00 25004100 
 4b00891f 721f5b1f 441f2d1f 161fff1e e81ed11e ba1e2b1e 9c1d121d 871cfd1b 
 721be71a 5c1ad119 6e190919 ab184d18 7601ef17 91173317 d516ba16 9f168416 
 69164e16 33161816 fd15e215 c715ac15 91157615 5b154015 25150a15 ef14d414 
 b9149e14 83146814 4d143214 1714fc13 e113c613 ab139013 75135a13 3f132413 
 0913ee12 b1126c12 2e12f611 b8117411 3611f210 b7107610 44101010 d60f9a0f 
 5b0f1b0f e50eb10e 7f0e400e 020ecd0d 9b0d5e0d 1f0dea0c b80c830c 510c140c 
 d50ba00b 6e0b390b 070bca0a 8b0a500a 150add09 a5097009 3e090109 c2088708 
 4c081408 dc07a707 75073807 fa06bf06 86064a06 0d06d805 a6056905 2b05f104 
 c1047d04 3904fb03 ba037703 38030303 d1029402 58021e02 d3010000 006c0214 
 0102c108 02c10802 c11a0180 05525449 4d4502c1 0202c11a 0180ffff 0180ffff 
 02c10801 8003c209 4a02c102 01806c00 14096c00 210503c2 5c20ff01 80018001 
 80018002 c1060180 01800180 ff02c102 03c21533 03c22964 018002c1 0203c202 


 <32 bytes per line>


BBED> dump file 7 block 10 count 8200
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets:    0 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 06a20000 0a00c001 a6ba0700 00000706 75f20000 01000000 17cd0000 96ba0700 
 00000000 02000300 00000000 02002500 0d010000 e8008000 3b010300 03200000 
 a6ba0700 00000000 00000000 00000000 00000000 00000000 00000000 00010300 
 ffff1800 831f691f 691f0000 0300981f 901f831f 00001300 09001c00 25004100 
 4b00891f 721f5b1f 441f2d1f 161fff1e e81ed11e ba1e2b1e 9c1d121d 871cfd1b 
 ...
  0f000040 6a8c0006 00406a8c 000603c2 5c22ac00 010f000f 0000406a 8c000500 
 406a8c00 0503c25c 1eac0001 0d000d00 00406a8c 00040040 6a8c0004 03c25c1c 
 ac00010d 000d0000 406a8c00 0300406a 8c000303 c25c18ac 00010800 08000040 
 6a8c0002 00406a8c 000203c2 5c16ac00 010c000c 0000406a 8c000100 406a8c2c 
 010203c2 0a640573 6576656e 2c010202 c1030162 2c010202 c1020161 0706a6ba 


 <32 bytes per line>


SQL> select dump(id,16) from t;


DUMP(ID,16)
--------------------------------------------------------------------------------
Typ=2 Len=2: c1,2
Typ=2 Len=2: c1,3
Typ=2 Len=3: c2,a,64


SQL> select dump(name,16) from t;


DUMP(NAME,16)
--------------------------------------------------------------------------------
Typ=1 Len=1: 61
Typ=1 Len=1: 62
Typ=1 Len=5: 73,65,76,65,6e








SQL> @getrowidinfo
Enter value for owner: ms1
Enter value for table: t


        ID NAME                 ROWID_TYPE    FILE_NO   BLOCK_NO     ROW_NO ORA_ROWSCN  OBJECT_NO
---------- -------------------- ---------- ---------- ---------- ---------- ---------- ----------
         1 a                             1          7         10          0     506534      52503
         2 b                             1          7         10          1     506534      52503
       999 seven                         1          7         10          2     506534      52503




BBED> set file 7 block 10 offset 0
        FILE#           7
        BLOCK#          10
        OFFSET          0
BBED> find /c a top
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 610706a6 ba 


 <32 bytes per line>


BBED> d /v dba 7,10 offset 8187        
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8187 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 610706a6 ba                         l a....


 <16 bytes per line>
 
BBED> set file 7 block 10 offset 2
        FILE#           7
        BLOCK#          10
        OFFSET          2


 BBED> find /c s top
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8167 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 73657665 6e2c0102 02c10301 622c0102 02c10201 610706a6 ba 


 <32 bytes per line>
 
 BBED> d /v dba 7,10 offset 8167
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8167 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 73657665 6e2c0102 02c10301 622c0102 l seven,......b,..
 02c10201 610706a6 ba                l ....a....


 <16 bytes per line>
 
 
 
 
 SQL> update t set name=‘sven‘ where id=999;


1 row updated.


SQL> commit;


Commit complete.


SQL> alter system checkpoint;


System altered.


SQL> 






SQL> @getrowidinfo
Enter value for owner: ms1
Enter value for table: t


        ID NAME                 ROWID_TYPE    FILE_NO   BLOCK_NO     ROW_NO ORA_ROWSCN  OBJECT_NO
---------- -------------------- ---------- ---------- ---------- ---------- ---------- ----------
         1 a                             1          7         10          0     513384      52503
         2 b                             1          7         10          1     513384      52503
       999 sven                          1          7         10          2     513384      52503
       
       
BBED> set file 7 block 10 offset 2
        FILE#           7
        BLOCK#          10
        OFFSET          2


BBED> find /c s top      --查找字符串s
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8155 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 7376656e 2c000203 c20a6405 73657665 6e2c0002 02c10301 622c0002 02c10201 
 61020668 d5 


 <32 bytes per line>


BBED> d /v dba 7,10 offset 8155
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8155 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 7376656e 2c000203 c20a6405 73657665 l sven,.....d.seve    --能够看出update之前的数据seven还在数据块里面的。新的值sevn插入在上面
 6e2c0002 02c10301 622c0002 02c10201 l n,......b,......
 61020668 d5                         l a..h.


 <16 bytes per line>






更改数据


SQL> @getrowidinfo
Enter value for owner: ms1
Enter value for table: t


        ID NAME                 ROWID_TYPE    FILE_NO   BLOCK_NO     ROW_NO ORA_ROWSCN  OBJECT_NO
---------- -------------------- ---------- ---------- ---------- ---------- ---------- ----------
         1 a                             1          7         10          0     513384      52503
         2 b                             1          7         10          1     513384      52503
       999 sven                          1          7         10          2     513384      52503




--我想把name字段的a改成c
SQL> select dump(‘a‘,16) from dual;


DUMP(‘A‘,16)
--------------------------------
Typ=96 Len=1: 61


SQL> select dump(‘c‘,16) from dual;


DUMP(‘C‘,16)
--------------------------------
Typ=96 Len=1: 63




BBED> f /x 61 curr          --先找到61的位置 offset=8187
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 61020668 d5 


 <32 bytes per line>


BBED> d /v offset 8187      --dump内容出来 offset=8187,能够看到字符a
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8187 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 61020668 d5                         l a..h.


 <16 bytes per line>






BBED> help m         --m:modify 改动数据的命令
MODIFY[/x|d|u|o|c] numeric/character string
      [ DBA | FILE | FILENAME | BLOCK | OFFSET | symbol | *symbol ]




BBED> m /x 63 dba 7,10 offset 8187  --改动为63
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 63020668 d5  --这里由61020668-->  63020668


 <32 bytes per line>




BBED> verify          --检查一下块的完整性
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/gname/mssm.dbf
BLOCK = 10


Block 10 is corrupt
Corrupt block relative dba: 0x01c0000a (file 0, block 10)
Bad check value found during verification
Data in bad block:
 type: 6 format: 2 rdba: 0x01c0000a
 last change scn: 0x0000.0007d568 seq: 0x2 flg: 0x06
 spare1: 0x0 spare2: 0x0 spare3: 0x0
 consistency value in tail: 0xd5680602
 check value in block header: 0x5a29
 computed block checksum: 0x200




DBVERIFY - Verification complete


Total Blocks Examined         : 1
Total Blocks Processed (Data) : 0
Total Blocks Failing   (Data) : 0
Total Blocks Processed (Index): 0
Total Blocks Failing   (Index): 0
Total Blocks Empty            : 0
Total Blocks Marked Corrupt   : 1
Total Blocks Influx           : 0






BBED> d /v offset 8187
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8187 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 63020668 d5                         l c..h.  --这里由a..h.变成c..h. 


 <16 bytes per line>


BBED> undo           --undo。回滚上一步
BBED> modify /x 61 filename ‘/u01/oracle/oradata/gname/mssm.dbf‘ block 10. offset 8187.
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 61020668 d5         --这里由63020668--> 61020668


 <32 bytes per line>




--验证undo仅仅能回滚上一步,revert能够回滚所有


BBED> m /x 62
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 62020668 d5 


 <32 bytes per line>
BBED> m /x 63
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 63020668 d5 


 <32 bytes per line>
BBED> m /x 64
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 64020668 d5 


 <32 bytes per line>


BBED> d /v
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8187 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 64020668 d5                         l d..h.


 <16 bytes per line>
BBED> undo  --回到上一步
BBED> modify /x 63 filename ‘/u01/oracle/oradata/gname/mssm.dbf‘ block 10. offset 8187.
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 63020668 d5 


 <32 bytes per line>




BBED> revert --回到最初
All changes made in this session will be rolled back. Proceed? (Y/N) y
Reverted file ‘/u01/oracle/oradata/gname/mssm.dbf‘, block 10
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y


BBED> d /v
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8187 to 8191  Dba:0x01c0000a
-------------------------------------------------------
 61020668 d5                         l a..h.


 <16 bytes per line>






真的要改数据了
BBED> show
        FILE#           7
        BLOCK#          10
        OFFSET          8187
        DBA             0x01c0000a (29360138 7,10)
        FILENAME        /u01/oracle/oradata/gname/mssm.dbf
        BIFILE          bifile.bbd
        LISTFILE        /u01/bbed/filelist.txt
        BLOCKSIZE       8192
        MODE            Edit
        EDIT            Unrecoverable
        IBASE           Dec
        OBASE           Dec
        WIDTH           80
        COUNT           300
        LOGFILE         log.bbd
        SPOOL           No


BBED> m /x 63
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 63020668 d5 


 <32 bytes per line>


BBED> sum 
Check value for File 7, Block 10:
current = 0x5a29, required = 0x5829


SQL> select * from t;


        ID NAME
---------- --------------------
         1 a
         2 b
       999 sven


BBED> sum apply  --真正应用之前的改动。类似oracle的commit
Check value for File 7, Block 10:
current = 0x5829, required = 0x5829


SQL> /


        ID NAME
---------- --------------------
         1 a
         2 b
       999 sven


SQL> conn / as sysdba
Connected.
SQL> startup force
ORACLE instance started.


Total System Global Area  285212672 bytes
Fixed Size                  1218992 bytes
Variable Size              79693392 bytes
Database Buffers          201326592 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
SQL> conn ms1/ms1 
Connected.
SQL> select * from t;


        ID NAME
---------- --------------------
         1 c
         2 b
       999 sven






copy块复制命令
BBED> set file 7 block 10 offset 8187
        FILE#           7
        BLOCK#          10
        OFFSET          8187


BBED> d /v dba 999,10 offset 8187
 File: /u01/oracle/oradata/gname/mssm.dbf_bak20140704 (999)    --备份文件里是a
 Block: 10      Offsets: 8187 to 8191  Dba:0xf9c0000a
-------------------------------------------------------
 610706a6 ba                         l a....


 <16 bytes per line>


BBED> d /v dba 7,10 offset 8187
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10      Offsets: 8187 to 8191  Dba:0x01c0000a          --当前数据文件里是e
-------------------------------------------------------
 65020668 d5                         l e..h.


 <16 bytes per line>


BBED> copy dba 999,10 to dba 7,10       --copy覆盖
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
 File: /u01/oracle/oradata/gname/mssm.dbf (7)
 Block: 10               Offsets: 8187 to 8191           Dba:0x01c0000a
------------------------------------------------------------------------
 610706a6 ba 


 <32 bytes per line>






SQL> conn ms1/ms1 
Connected.
SQL> select * from t;


        ID NAME
---------- --------------------
         1 e
         2 b
       999 sven
SQL> conn / as sysdba
Connected.
SQL> startup force
ORACLE instance started.


Total System Global Area  285212672 bytes
Fixed Size                  1218992 bytes
Variable Size              79693392 bytes
Database Buffers          201326592 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
SQL> select * from ms1.t;   --重新启动才生效


        ID NAME
---------- --------------------
         1 a
         2 b
       999 seven



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