Oracle BBED怎么修改数据块中的数据

本篇内容介绍了“Oracle BBED怎么修改数据块中的数据”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！BBED修改数据：建立测试数据：
SQL> create table dbhang (id number,name varchar2(20));
Table created.SQL> insert into dbhang values(1,’baoyuhang’);
1 row created.SQL> commit;
Commit complete.SQL> select * from dbhang;
ID NAME
1 baoyuhang查看文件号，块号，行号：
select
rowid,
dbms_rowid.rowid_relative_fno(rowid)rel_fno,
dbms_rowid.rowid_block_number(rowid)blockno,
dbms_rowid.rowid_row_number(rowid) rowno
from dbhang;ROWID REL_FNO BLOCKNO ROWNOAAAVoxAABAAAW8BAAA 1 93953 0查询数据文件：SQL> select file# || ‘ ‘ ||name || ‘’ || bytes from v$datafile;FILE#||’’||NAME||’’||BYTES
1 /oracle/app/oradata/prod/system01.dbf786432000
2 /oracle/app/oradata/prod/sysaux01.dbf545259520
3 /oracle/app/oradata/prod/undotbs01.dbf94371840
4 /oracle/app/oradata/prod/users01.dbf5242880
5 /oracle/app/oradata/prod/example01.dbf328335360
6 /oracle/app/oradata/prod/dbhang01.dbf52428800
7 /oracle/app/oradata/prod/dbhang02.dbf52428800将以上查询的信息保存在文本中：[oracle
@server1 ~]$ cat datafile.txt
1 /oracle/app/oradata/prod/system01.dbf 786432000
2 /oracle/app/oradata/prod/sysaux01.dbf 545259520
3 /oracle/app/oradata/prod/undotbs01.dbf 94371840
4 /oracle/app/oradata/prod/users01.dbf 5242880
5 /oracle/app/oradata/prod/example01.dbf 328335360
6 /oracle/app/oradata/prod/dbhang01.dbf 52428800
7 /oracle/app/oradata/prod/dbhang02.dbf 52428800关闭数据库：
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.创建BBED参数文件：[oracle
@server1 ~]$ cat bbed.par
blocksize=8192
listfile=/home/oracle/datafile.txt //指定文本文件
mode=edit //编辑模式现将数据baoyuhang修改为bbbyuhang连接BBED，进行数据定位：[oracle
@server1 ~]$ bbed parfile=/home/oracle/bbed.par
Password:BBED: Release 2.0.0.0.0 – Limited Production on Thu Jul 30 05:59:45 2020Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.* !!! For Oracle Internal Use only !!!
*BBED>指定1号文件93953号块：BBED> set dba 1,93953 offset 0
DBA 0x00416f01 (4288257 1,93953)
OFFSET 0定位数据：（确定数据在block中的偏移量）BBED> find /c baoyuhang
File: /oracle/app/oradata/prod/system01.dbf (1)
Block: 93953 Offsets: 8179 to 8191 Dba:0x00416f01
62616f79 7568616e 6704066c 38dump查看一下offset 8179信息：
BBED> dump /v dba 1,93953 offset 8179 count 128
File: /oracle/app/oradata/prod/system01.dbf (1)
Block: 93953 Offsets: 8179 to 8191 Dba:0x00416f0162616f79 7568616e 6704066c 38 免费主机域名l baoyuhang..l8Offsets: 8179 to 8191 代表这一行的地址。也是说baoyuhang属于8179-8191 b:8179
a:8180
o:8181修改 block将bao替换为bbb：BBED>
modify /c bbb dba 1,93953 offset 8179
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
File: /oracle/app/oradata/prod/system01.dbf (1)
Block: 93953 Offsets: 8179 to 8191 Dba:0x00416f0162626279 7568616e 670106ba 3c再次查看修改后的数据：BBED> dump /v dba 1,93953 offset 8179 count 128
File: /oracle/app/oradata/prod/system01.dbf (1)
Block: 93953 Offsets: 8179 to 8191 Dba:0x00416f0162626279 7568616e 6704066c 38 l
bbbyuhang..l8应用变更：BBED> sum dba 1,93953 apply
Check value for File 1, Block 93953:
current = 0x29a2, required = 0x29a2回到sqlplus查询修改后的数据SQL> startup;
ORACLE instance started.Total System Global Area 830930944 bytes
Fixed Size 2257800 bytes
Variable Size 541068408 bytes
Database Buffers 281018368 bytes
Redo Buffers 6586368 bytes
Database mounted.
Database opened.SQL> select * from dbhang;
ID NAME
1 bbbyuhang修改完毕.BBED的安装：
http://blog.itpub.net/69975956/viewspace-2707944/“Oracle BBED怎么修改数据块中的数据”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注云技术网站，小编将为大家输出更多高质量的实用文免费主机域名章！

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