作者：david_zhang@sh 【转载时请以超链接形式标明文章】
链接：http://www.cnblogs.com/david-zhang-index/archive/2012/09/08/2676699.html
1.上传（sbbdpt.o ssbbded.o bbedus.msb，该三个文件拷贝oracle的linux64版本的）文件，到如下代码展示的目录中
三个文件下载地址：linux10g_64_bbed.7z
1 SQL> select * from v$version where rownum=1; 2 3 BANNER 4 -------------------------------------------------------------------------------- 5 Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
1 [oracle@DG lib]$ pwd 2 /u01/app/oracle/product/11.2.0/dbhome_1/rdbms/lib 3 [oracle@DG lib]$ ls ssbbded.o sbbdpt.o 4 sbbdpt.o ssbbded.o 5 [oracle@DG lib]$ cd ../mesg/ 6 [oracle@DG mesg]$ pwd 7 /u01/app/oracle/product/11.2.0/dbhome_1/rdbms/mesg 8 [oracle@DG mesg]$ ls bbedus.msb 9 bbedus.msb 10 [oracle@DG mesg]$
2.执行如下命令：
1 [oracle@DG ~]$ make -f $ORACLE_HOME/rdbms/lib/ins_rdbms.mk BBED=$ORACLE_HOME/bin/bbed $ORACLE_HOME/bin/bbed 2 以下为执行命令后默认输出的 3 Linking BBED utility (bbed) 4 rm -f /u01/app/oracle/product/11.2.0/dbhome_1/bin/bbed 5 gcc -o /u01/app/oracle/product/11.2.0/dbhome_1/bin/bbed -m64 -L/u01/app/oracle/product/11.2.0/dbhome_1/rdbms/lib/ -L/u01/app/oracle/product/11.2.0/dbhome_1/lib/ -L/u01/app/oracle/product/11.2.0/dbhome_1/lib/stubs/ /u01/app/oracle/product/11.2.0/dbhome_1/lib/s0main.o /u01/app/oracle/product/11.2.0/dbhome_1/rdbms/lib/ssbbded.o /u01/app/oracle/product/11.2.0/dbhome_1/rdbms/lib/sbbdpt.o `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/ldflags` -lncrypt11 -lnsgr11 -lnzjs11 -ln11 -lnl11 -ldbtools11 -lclntsh `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/ldflags` -lncrypt11 -lnsgr11 -lnzjs11 -ln11 -lnl11 -lnro11 `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/ldflags` -lncrypt11 -lnsgr11 -lnzjs11 -ln11 -lnl11 -lnnz11 -lzt11 -lztkg11 -lztkg11 -lclient11 -lnnetd11 -lvsn11 -lcommon11 -lgeneric11 -lmm -lsnls11 -lnls11 -lcore11 -lsnls11 -lnls11 -lcore11 -lsnls11 -lnls11 -lxml11 -lcore11 -lunls11 -lsnls11 -lnls11 -lcore11 -lnls11 `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/ldflags` -lncrypt11 -lnsgr11 -lnzjs11 -ln11 -lnl11 -lnro11 `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/ldflags` -lncrypt11 -lnsgr11 -lnzjs11 -ln11 -lnl11 -lclient11 -lnnetd11 -lvsn11 -lcommon11 -lgeneric11 -lsnls11 -lnls11 -lcore11 -lsnls11 -lnls11 -lcore11 -lsnls11 -lnls11 -lxml11 -lcore11 -lunls11 -lsnls11 -lnls11 -lcore11 -lnls11 -lclient11 -lnnetd11 -lvsn11 -lcommon11 -lgeneric11 -lsnls11 -lnls11 -lcore11 -lsnls11 -lnls11 -lcore11 -lsnls11 -lnls11 -lxml11 -lcore11 -lunls11 -lsnls11 -lnls11 -lcore11 -lnls11 `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/sysliblist` -Wl,-rpath,/u01/app/oracle/product/11.2.0/dbhome_1/lib -lm `cat /u01/app/oracle/product/11.2.0/dbhome_1/lib/sysliblist` -ldl -lm -L/u01/app/oracle/product/11.2.0/dbhome_1/lib
3.登录，默认密码blockedit，出现如下提示符安装成功
1 [oracle@DG ~]$ bbed 2 Password: 3 4 BBED: Release 2.0.0.0.0 - Limited Production on Sat Sep 8 15:29:28 2012 5 6 Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved. 7 8 ************* !!! For Oracle Internal Use only !!! *************** 9 10 BBED> show all 11 FILE# 0 12 BLOCK# 1 13 OFFSET 0 14 DBA 0x00000000 (0 0,1) 15 FILENAME 16 BIFILE bifile.bbd 17 LISTFILE 18 BLOCKSIZE 8192 19 MODE Browse 20 EDIT Unrecoverable 21 IBASE Dec 22 OBASE Dec 23 WIDTH 80 24 COUNT 512 25 LOGFILE log.bbd 26 SPOOL No
4.Example#1-Changing Data
1 SQL> conn scott/tiger 2 Connected. 3 SQL> select * from presidents; 4 5 NAME START_YEAR END_YEAR 6 -------------------- ---------- ---------- 7 Dwight Eisnehower 1953 1961 8 Jonh Kennedy 1961 1963 9 10 SQL> select rowid from presidents where name = 'Dwight Eisnehower'; 11 12 ROWID 13 ------------------ 14 AAASTyAAEAAAAivAAA
1 create or replace function get_rowid(l_rowid in varchar2) return varchar2 is 2 ls_my_rowid varchar2(200); 3 rowid_type number; 4 object_number number; 5 relative_fno number; 6 block_number number; 7 row_number number; 8 begin 9 dbms_rowid.rowid_info(l_rowid, 10 rowid_type, 11 object_number, 12 relative_fno, 13 block_number, 14 row_number); 15 ls_my_rowid := 'Row_id type is :' || to_char(rowid_type) || chr(10) || 16 'Object# is :' || to_char(object_number) || chr(10) || 17 'Relative_fno is :' || to_char(relative_fno) || chr(10) || 18 'Block number is :' || to_char(block_number) || chr(10) || 19 'Row number is :' || to_char(row_number); 20 return ls_my_rowid; 21 end;
1 SQL> select get_rowid('AAASTyAAEAAAAivAAA') row_id from dual; 2 3 ROW_ID 4 ------------------------------------------------------------ 5 Row_id type is :1 6 Object# is :74994 7 Relative_fno is :4 8 Block number is :2223 9 Row number is :0
1 [oracle@DG ~]$ bbed parfile=bbed.par 2 Password: 3 4 BBED: Release 2.0.0.0.0 - Limited Production on Sat Sep 15 21:00:43 2012 5 6 Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved. 7 8 ************* !!! For Oracle Internal Use only !!! *************** 9 10 BBED> set dba 4,2223 11 DBA 0x010008af (16779439 4,2223) 12 13 BBED> find /c Dwight 14 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 15 Block: 2223 Offsets: 8161 to 8191 Dba:0x010008af 16 ------------------------------------------------------------------------ 17 44776967 68742045 69736e65 686f7765 72043139 35330431 39363101 0611d9 18 19 <32 bytes per line> 20 BBED> dump /v dba 4,2223 offset 8161 count 64 21 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 22 Block: 2223 Offsets: 8161 to 8191 Dba:0x010008af 23 ------------------------------------------------------- 24 44776967 68742045 69736e65 686f7765 l Dwight Eisnehowe 25 72043139 35330431 39363101 0611d9 l r.1953.1961...Ù 26 27 <16 bytes per line> 28 29 BBED> modify /c Eisn dba 4,2223 offset 8161 30 Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y 31 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 32 Block: 2223 Offsets: 8161 to 8191 Dba:0x010008af 33 ------------------------------------------------------------------------ 34 4569736e 68742045 69736e65 686f7765 72043139 35330431 39363101 0611d9 35 36 <32 bytes per line> 37 38 BBED> dump /v dba 4,2223 offset 8161 count 64 39 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 40 Block: 2223 Offsets: 8161 to 8191 Dba:0x010008af 41 ------------------------------------------------------- 42 4569736e 68742045 69736e65 686f7765 l Eisnht Eisnehowe 43 72043139 35330431 39363101 0611d9 l r.1953.1961...Ù 44 45 <16 bytes per line> 46 47 BBED> sum dba 4,2223 48 Check value for File 4, Block 2223: 49 current = 0xcf83, required = 0xd494 50 51 BBED> sum dba 4,2223 apply 52 Check value for File 4, Block 2223: 53 current = 0xd494, required = 0xd494 54 55 BBED> exit
1 SQL> alter system flush buffer_cache; 2 3 System altered. 4 5 SQL> conn scott/tiger 6 Connected. 7 SQL> select * from presidents; 8 9 NAME START_YEAR END_YEAR 10 -------------------- ---------- ---------- 11 Eisnht Eisnehower 1953 1961 12 Jonh Kennedy 1961 1963
备注：Dwight被Eisn替换是按照顺序进行的且字节数一致，替换后为Eisnht，如果ht也提替换可以空格补充。
Example#2-Recovering Deleted Rows
删除一条记录
1 SQL> select * from presidents; 2 3 NAME START_YEAR END_YEAR 4 -------------------- ---------- ---------- 5 Eisnht Eisnehower 1953 1961 6 Jonh Kennedy 1961 1963 7 Richard Nixon 1969 1974 8 9 SQL> delete from presidents where name = 'Richard Nixon'; 10 11 1 row deleted. 12 13 SQL> commit; 14 15 Commit complete. 16 17 SQL> select * from presidents; 18 19 NAME START_YEAR END_YEAR 20 -------------------- ---------- ---------- 21 Eisnht Eisnehower 1953 1961 22 Jonh Kennedy 1961 1963
根据段名查询相关信息，并dump数据块
1 SQL> select HEADER_FILE,HEADER_BLOCK,BLOCKS from dba_segments where SEGMENT_NAME = 'PRESIDENTS'; 2 3 HEADER_FILE HEADER_BLOCK BLOCKS 4 ----------- ------------ ---------- 5 4 2218 8 6 7 SQL> alter system dump datafile 4 block min 2218 block max 2225; 8 9 System altered. 10 11 SQL> oradebug setmypid; 12 Statement processed. 13 SQL> oradebug tracefile_name; 14 /u01/app/oracle/diag/rdbms/oracle/oracle/trace/oracle_ora_3381.trc
查看trace文件，这里我dump了8个块，这里稍微解释下“--H-FL--”（数据块属性）= Row Flag=32+8+4=44=0x2c，“--HDFL--”（删除数据块属性）= Row Flag=32+16+8+4=60=0x3c
1 .....省略..... 2 block_row_dump: 3 tab 0, row 0, @0x1f79 4 tl: 31 fb: --H-FL-- lb: 0x0 cc: 3 5 col 0: [17] 45 69 73 6e 68 74 20 45 69 73 6e 65 68 6f 77 65 72 6 col 1: [ 4] 31 39 35 33 7 col 2: [ 4] 31 39 36 31 8 tab 0, row 1, @0x1f5f 9 tl: 26 fb: --H-FL-- lb: 0x0 cc: 3 10 col 0: [12] 4a 6f 6e 68 20 4b 65 6e 6e 65 64 79 11 col 1: [ 4] 31 39 36 31 12 col 2: [ 4] 31 39 36 33 13 tab 0, row 2, @0x1f44 14 tl: 27 fb: --HDFL-- lb: 0x1 cc: 3 15 col 0: [13] 52 69 63 68 61 72 64 20 4e 69 78 6f 6e 16 col 1: [ 4] 31 39 36 39 17 col 2: [ 4] 31 39 37 34 18 end_of_block_dump 19 .....省略.....
定位数据块
1 BBED> set dba 4,2218 offset 0 2 DBA 0x010008aa (16779434 4,2218) 3 OFFSET 0
查找被删除数据
1 BBED> find /c Nixon 2 BBED-00212: search string not found 3 4 5 BBED> set dba 4,2219 offset 0 6 DBA 0x010008ab (16779435 4,2219) 7 OFFSET 0 8 9 BBED> find /c Nixon 10 BBED-00212: search string not found 11 12 13 BBED> set dba 4,2220 offset 0 14 DBA 0x010008ac (16779436 4,2220) 15 OFFSET 0 16 17 BBED> find /c Nixon 18 BBED-00212: search string not found 19 20 21 BBED> set dba 4,2221 offset 0 22 DBA 0x010008ad (16779437 4,2221) 23 OFFSET 0 24 25 BBED> find /c Nixon 26 BBED-00212: search string not found 27 28 29 BBED> set dba 4,2222 offset 0 30 DBA 0x010008ae (16779438 4,2222) 31 OFFSET 0 32 33 BBED> find /c Nixon 34 BBED-00212: search string not found 35 36 37 BBED> set dba 4,2223 offset 0 38 DBA 0x010008af (16779439 4,2223) 39 OFFSET 0 40 41 BBED> find /c Nixon 42 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 43 Block: 2223 Offsets: 8116 to 8191 Dba:0x010008af 44 ------------------------------------------------------------------------ 45 4e69786f 6e043139 36390431 3937342c 00030c4a 6f6e6820 4b656e6e 65647904 46 31393631 04313936 332c0003 11456973 6e687420 4569736e 65686f77 65720431 47 39353304 31393631 0206d148 48 49 <32 bytes per line>
dump数据块内容
1 BBED> d /v dba 4,2223 offset 8116 2 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 3 Block: 2223 Offsets: 8116 to 8191 Dba:0x010008af 4 ------------------------------------------------------- 5 4e69786f 6e043139 36390431 3937342c l Nixon.1969.1974, 6 00030c4a 6f6e6820 4b656e6e 65647904 l ...Jonh Kennedy. 7 31393631 04313936 332c0003 11456973 l 1961.1963,...Eis 8 6e687420 4569736e 65686f77 65720431 l nht Eisnehower.1 9 39353304 31393631 0206d148 l 953.1961..ÑH 10 11 <16 bytes per line>
根据下面内容可以得出：一个偏移量两个字节，而“4e69786f”是8个字节，所以一次想跳8个字节，offset一次偏移4
1 BBED> d /v dba 4,2223 offset 8116 2 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 3 Block: 2223 Offsets: 8116 to 8191 Dba:0x010008af 4 ------------------------------------------------------- 5 4e69786f 6e043139 36390431 3937342c l Nixon.1969.1974, 6 00030c4a 6f6e6820 4b656e6e 65647904 l ...Jonh Kennedy. 7 31393631 04313936 332c0003 11456973 l 1961.1963,...Eis 8 6e687420 4569736e 65686f77 65720431 l nht Eisnehower.1 9 39353304 31393631 0206d148 l 953.1961..ÑH 10 11 <16 bytes per line> 12 13 BBED> d /v dba 4,2223 offset 8115 14 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 15 Block: 2223 Offsets: 8115 to 8191 Dba:0x010008af 16 ------------------------------------------------------- 17 204e6978 6f6e0431 39363904 31393734 l Nixon.1969.1974 18 2c00030c 4a6f6e68 204b656e 6e656479 l ,...Jonh Kennedy 19 04313936 31043139 36332c00 03114569 l .1961.1963,...Ei 20 736e6874 20456973 6e65686f 77657204 l snht Eisnehower. 21 31393533 04313936 310206d1 48 l 1953.1961..ÑH 22 23 <16 bytes per line>
找到块头
1 BBED> d /v dba 4,2223 offset 8104 2 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 3 Block: 2223 Offsets: 8104 to 8191 Dba:0x010008af 4 ------------------------------------------------------- 5 3c02030d 52696368 61726420 4e69786f l <...Richard Nixo 6 6e043139 36390431 3937342c 00030c4a l n.1969.1974,...J 7 6f6e6820 4b656e6e 65647904 31393631 l onh Kennedy.1961 8 04313936 332c0003 11456973 6e687420 l .1963,...Eisnht 9 4569736e 65686f77 65720431 39353304 l Eisnehower.1953. 10 31393631 0206d148 l 1961..ÑH 11 12 <16 bytes per line>
再次确认被删除数据位置
1 BBED> p kdbr 2 sb2 kdbr[0] @118 8057 3 sb2 kdbr[1] @120 8031 4 sb2 kdbr[2] @122 8004 5 6 BBED> p *kdbr[0] 7 rowdata[53] 8 ----------- 9 ub1 rowdata[53] @8157 0x2c 10 11 BBED> p *kdbr[1] 12 rowdata[27] 13 ----------- 14 ub1 rowdata[27] @8131 0x2c 15 16 BBED> p *kdbr[2] 17 rowdata[0] 18 ---------- 19 ub1 rowdata[0] @8104 0x3c
恢复删除数据
1 BBED> modify /x 2c offset 8104 2 Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y 3 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 4 Block: 2223 Offsets: 8104 to 8191 Dba:0x010008af 5 ------------------------------------------------------------------------ 6 2c02030d 52696368 61726420 4e69786f 6e043139 36390431 3937342c 00030c4a 7 6f6e6820 4b656e6e 65647904 31393631 04313936 332c0003 11456973 6e687420 8 4569736e 65686f77 65720431 39353304 31393631 0206d148 9 10 <32 bytes per line>
生效恢复
1 BBED> sum dba 4,2223 2 Check value for File 4, Block 2223: 3 current = 0xcfd0, required = 0xcfc0 4 5 BBED> sum dba 4,2223 apply 6 Check value for File 4, Block 2223: 7 current = 0xcfc0, required = 0xcfc0
再次dump数据块确认成功
1 BBED> d /v dba 4,2223 offset 8104 2 File: /u01/app/oracle/oradata/oracle/users01.dbf (4) 3 Block: 2223 Offsets: 8104 to 8191 Dba:0x010008af 4 ------------------------------------------------------- 5 2c02030d 52696368 61726420 4e69786f l ,...Richard Nixo 6 6e043139 36390431 3937342c 00030c4a l n.1969.1974,...J 7 6f6e6820 4b656e6e 65647904 31393631 l onh Kennedy.1961 8 04313936 332c0003 11456973 6e687420 l .1963,...Eisnht 9 4569736e 65686f77 65720431 39353304 l Eisnehower.1953. 10 31393631 0206d148 l 1961..ÑH 11 12 <16 bytes per line> 13 ---------------------
查询表，数据成功恢复
1 SQL> alter system flush buffer_cache; 2 3 System altered. 4 5 SQL> conn scott/tiger 6 Connected. 7 SQL> select * from presidents; 8 9 NAME START_YEAR END_YEAR 10 -------------------- ---------- ---------- 11 Eisnht Eisnehower 1953 1961 12 Jonh Kennedy 1961 1963 13 Richard Nixon 1969 1974
Example#3-Uncorrupting a Block
