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最近发表
- 记录一次云存储资源到期之后引起的数据库恢复
- Firebird 损坏数据库数据抢救工具—firebirdext
- Oracle 19c 202610补丁(RUs+OJVM)-19.33
- 由于con$.con#值达到极限,触发数据库增加约束报ORA-600 12807错误
- MongoDB 离线提取工具—mongoext
- .bres勒索病毒加密数据库dmp文件可恢复
- ORA-600 krsm_mrp_rebuild_lf_list.lno_mismatch
- 记录一次0丢失的ORA-00354: 损坏重做日志块标头故障恢复
- 不当数据库恢复操作导致一个月数据丢失
- obet快速修复oracle 位图损坏块
- 不太常见的10.2.0.1的oracle redo损坏恢复
- obet forcecopy功能抢救硬件故障中的数据文件
- kcratr_nab_less_than_odr和system坏块故障处理
- 通过obet 恢复system坏块,打开数据库
- obet dbv功能完整说明
- 分享一例运行在aix上的sap系统数据库恢复过程
- OBET-Oracle Block Editor Tool使用说明
- 几乎动用了所有手段的Oracle故障恢复
- Oracle Block Edit Tool (obet) 功能增强–2026.07
- Oracle 19c 202607补丁(RUs+OJVM)-19.32
分类目录归档:Oracle备份恢复
Oracle 传输表空间
0、检查平台信息
所有tts支持平台
SELECT * FROM V$TRANSPORTABLE_PLATFORM;
当前系统平台情况
SELECT d.PLATFORM_NAME, ENDIAN_FORMAT
FROM V$TRANSPORTABLE_PLATFORM tp, V$DATABASE d
WHERE tp.PLATFORM_NAME = d.PLATFORM_NAME;
一、源端操作
检查是否符合TTS要求
SQL> EXECUTE DBMS_TTS.TRANSPORT_SET_CHECK(‘ODU’, TRUE);
PL/SQL procedure successfully completed.
SQL> SELECT * FROM TRANSPORT_SET_VIOLATIONS;
no rows selected
SQL> SELECT COUNT(*) FROM DBA_TABLES WHERE TABLESPACE_NAME=’ODU’;
COUNT(*)
———-
59
SQL> SELECT file_name from dba_data_files where tablespace_name=’ODU’;
FILE_NAME
————————————————–
/opt/oracle/oradata/chf/odu01.dbf
/opt/oracle/oradata/chf/odu02.dbf
需要传输表空间至于readonly模式
SQL> ALTER TABLESPACE ODU READ ONLY;
Tablespace altered.
导出表空间元数据
[oracle@node1 ~]$ exp userid=\’/ as sysdba\’ tablespaces=ODU file=/tmp/ODU.dmp transport_tablespace=y
Export: Release 10.2.0.4.0 – Production on Sun Sep 11 10:01:52 2011
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 – 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
Note: table data (rows) will not be exported
About to export transportable tablespace metadata…
For tablespace ODU …
. exporting cluster definitions
. exporting table definitions
. . exporting table T_ODU_03
. . exporting table T_ODU_01
. . exporting table T_ODU
. . exporting table DB
. . exporting table NODE
. . exporting table CONF
. . exporting table DBINC
. . exporting table CKP
. . exporting table TS
. . exporting table TSATT
. . exporting table DF
. . exporting table DFATT
. . exporting table TF
. . exporting table TFATT
. . exporting table OFFR
. . exporting table RR
. . exporting table RT
. . exporting table ORL
. . exporting table RLH
. . exporting table AL
. . exporting table BS
. . exporting table BP
. . exporting table BCF
. . exporting table CCF
. . exporting table XCF
. . exporting table BSF
. . exporting table BDF
. . exporting table CDF
. . exporting table XDF
. . exporting table BRL
. . exporting table BCB
. . exporting table CCB
. . exporting table SCR
. . exporting table SCRL
. . exporting table CONFIG
. . exporting table XAL
. . exporting table RSR
. . exporting table FB
. . exporting table GRSP
. . exporting table ROUT
. . exporting table RCVER
. . exporting table F_DROP
. . exporting table T_QUERY
. . exporting table T_UNDO
. . exporting table A
. . exporting table T1
. . exporting table T2_1
. . exporting table T2
. . exporting table T_MV
. . exporting table TAB2
. . exporting table MLOG$_T_MV
. . exporting table T_N
. . exporting table T_M
. . exporting table MLOG$_T_N
. . exporting table T_1
. . exporting table T_2
. . exporting table T_3
. . exporting table T_4
. . exporting table T_5
. exporting referential integrity constraints
. exporting triggers
. end transportable tablespace metadata export
Export terminated successfully without warnings.
SQL> alter tablespace odu read write;
Tablespace altered.
传输到目标段
[oracle@node1 ~]$ scp /opt/oracle/oradata/chf/odu0* 192.168.11.12:/opt/oracle/oradata/test
The authenticity of host ’192.168.11.12 (192.168.11.12)’ can’t be established.
RSA key fingerprint is db:3c:b4:34:7f:d7:e4:97:ab:b6:8b:b0:ab:22:43:35.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added ’192.168.11.12′ (RSA) to the list of known hosts.
oracle@192.168.11.12′s password:
odu01.dbf 100% 100MB 3.3MB/s 00:30
odu02.dbf 100% 11GB 2.8MB/s 1:05:00
[oracle@node1 ~]$ scp /tmp/ODU.dmp 192.168.11.12:/tmp
oracle@192.168.11.12′s password:
Permission denied, please try again.
oracle@192.168.11.12′s password:
ODU.dmp 100% 456KB 456.0KB/s 00:00
二、目标端操作
导入元数据库
[oracle@ECP-UC-DB1 ~]$ imp userid=\’/ as sysdba\’ tablespaces=ODU file=/tmp/ODU.dmp transport_tablespace=y datafiles=/opt/oracle/oradata/test/odu01.dbf, /opt/oracle/oradata/test/odu02.dbf fromuser=chf touser=chf
Import: Release 10.2.0.4.0 – Production on Sun Sep 11 11:13:25 2011
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 – 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export file created by EXPORT:V10.02.01 via conventional path
About to import transportable tablespace(s) metadata…
import done in ZHS16GBK character set and AL16UTF16 NCHAR character set
. importing CHF’s objects into CHF
. . importing table “T_ODU_03″
. . importing table “T_ODU_01″
. . importing table “T_ODU”
. . importing table “DB”
. . importing table “NODE”
. . importing table “CONF”
. . importing table “DBINC”
. . importing table “CKP”
. . importing table “TS”
. . importing table “TSATT”
. . importing table “DF”
. . importing table “DFATT”
. . importing table “TF”
. . importing table “TFATT”
. . importing table “OFFR”
. . importing table “RR”
. . importing table “RT”
. . importing table “ORL”
. . importing table “RLH”
. . importing table “AL”
. . importing table “BS”
. . importing table “BP”
. . importing table “BCF”
. . importing table “CCF”
. . importing table “XCF”
. . importing table “BSF”
. . importing table “BDF”
. . importing table “CDF”
. . importing table “XDF”
. . importing table “BRL”
. . importing table “BCB”
. . importing table “CCB”
. . importing table “SCR”
. . importing table “SCRL”
. . importing table “CONFIG”
. . importing table “XAL”
. . importing table “RSR”
. . importing table “FB”
. . importing table “GRSP”
. . importing table “ROUT”
. . importing table “RCVER”
. . importing table “F_DROP”
. . importing table “T_QUERY”
. . importing table “T_UNDO”
. . importing table “A”
. . importing table “T1″
. . importing table “T2_1″
. . importing table “T2″
. . importing table “T_MV”
. . importing table “TAB2″
. . importing table “MLOG$_T_MV”
. . importing table “T_N”
. . importing table “T_M”
. . importing table “MLOG$_T_N”
. . importing table “T_1″
. . importing table “T_2″
. . importing table “T_3″
. . importing table “T_4″
. . importing table “T_5″
About to enable constraints…
Import terminated successfully without warnings.
SQL> select tablespace_name ,status from dba_tablespaces;
TABLESPACE_NAME STATUS
—————————— ———
SYSTEM ONLINE
UNDOTBS1 ONLINE
SYSAUX ONLINE
TEMP ONLINE
USERS ONLINE
XFF ONLINE
ODU READ ONLY
7 rows selected.
修改为readwrite模式(根据需求)
SQL> alter tablespace odu read write;
Tablespace altered.
SQL> SELECT COUNT(*) FROM DBA_TABLES WHERE TABLESPACE_NAME=’ODU’;
COUNT(*)
———-
59
三、相关说明
1、如果平台字节顺序不同,需要使用rman convert转换
2、导出导入元数据可以使用data pump实现
3、检查视图、触发器、包、过程、函数等对象,如果没有需要使用exp/imp row=n导入或者人工建立
发表在 逻辑备份/恢复
评论关闭
bbed 修改datafile header
SQL> startup
ORACLE instance started.
Total System Global Area 236000356 bytes
Fixed Size 451684 bytes
Variable Size 201326592 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
Database mounted.
ORA-01113: file 2 needs media recovery
ORA-01110: data file 2: '/opt/oracle/oradata/xifenfei/xff01.dbf'
提示数据文件2需要恢复,首选是recover datafile 2;,如果失败,可以考虑bbed修改scn的办法
SQL> select file#,to_char(checkpoint_change#,'999999999999') from v$datafile;
FILE# TO_CHAR(CHECK
---------- -------------
1 107374278108
2 107374278108
3 107374278108
4 107374278108
5 107374278108
6 107374278108
7 107374278108
8 107374278108
9 107374278108
10 107374278108
11 107374278108
11 rows selected.
SQL> select file#,online_status,to_char(change#,'999999999999') from v$recover_file;
FILE# ONLINE_ TO_CHAR(CHANG
---------- ------- -------------
2 ONLINE 107374277136
[oracle@localhost tmp]$ bbed parfile=/tmp/parfile.cnf
Password:
BBED: Release 2.0.0.0.0 - Limited Production on Mon Aug 22 06:05:34 2011
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
************* !!! For Oracle Internal Use only !!! ***************
BBED> info
File# Name Size(blks)
----- ---- ----------
1 /opt/oracle/oradata/xifenfei/system01.dbf 1280
2 /opt/oracle/oradata/xifenfei/xff01.dbf 1280
BBED> set dba 1,1
DBA 0x00400001 (4194305 1,1)
BBED> p kcvfhckp
struct kcvfhckp, 36 bytes @140
struct kcvcpscn, 8 bytes @140
* ub4 kscnbas @140 0x000175dc
ub2 kscnwrp @144 0x0019
* ub4 kcvcptim @148 0x2d49fbbb
ub2 kcvcpthr @152 0x0001
union u, 12 bytes @156
struct kcvcprba, 12 bytes @156
ub4 kcrbaseq @156 0x00000005
ub4 kcrbabno @160 0x00008e05
ub2 kcrbabof @164 0x0010
struct kcvcptr, 12 bytes @156
struct kcrtrscn, 8 bytes @156
ub4 kscnbas @156 0x00000005
ub2 kscnwrp @160 0x8e05
ub4 kcrtrtim @164 0x09110010
ub1 kcvcpetb[0] @168 0x02
ub1 kcvcpetb[1] @169 0x00
ub1 kcvcpetb[2] @170 0x00
ub1 kcvcpetb[3] @171 0x00
ub1 kcvcpetb[4] @172 0x00
ub1 kcvcpetb[5] @173 0x00
ub1 kcvcpetb[6] @174 0x00
ub1 kcvcpetb[7] @175 0x00
BBED> p kcvfhcpc
*ub4 kcvfhcpc @176 0x0000007a
BBED> p kcvfhccc
*ub4 kcvfhccc @184 0x00000079
星号表示使用bbed修改datafile header scn需要考虑的地方
SQL> select to_char(to_number('19000175dc','xxxxxxxxxxxx'),'999999999999') from dual;
TO_CHAR(TO_NU
-------------
107374278108
证实system01.dbf的scn为107374278108和v$datafile查询到的一致
BBED> set dba 2,1
DBA 0x00800001 (8388609 2,1)
BBED> p kcvfhckp
struct kcvfhckp, 36 bytes @140
struct kcvcpscn, 8 bytes @140
ub4 kscnbas @140 0x00017210
ub2 kscnwrp @144 0x0019
ub4 kcvcptim @148 0x2d49fa27
ub2 kcvcpthr @152 0x0001
union u, 12 bytes @156
struct kcvcprba, 12 bytes @156
ub4 kcrbaseq @156 0x00000005
ub4 kcrbabno @160 0x00006f18
ub2 kcrbabof @164 0x0010
struct kcvcptr, 12 bytes @156
struct kcrtrscn, 8 bytes @156
ub4 kscnbas @156 0x00000005
ub2 kscnwrp @160 0x6f18
ub4 kcrtrtim @164 0x09110010
ub1 kcvcpetb[0] @168 0x02
ub1 kcvcpetb[1] @169 0x00
ub1 kcvcpetb[2] @170 0x00
ub1 kcvcpetb[3] @171 0x00
ub1 kcvcpetb[4] @172 0x00
ub1 kcvcpetb[5] @173 0x00
ub1 kcvcpetb[6] @174 0x00
ub1 kcvcpetb[7] @175 0x00
BBED> p kcvfhcpc
ub4 kcvfhcpc @176 0x00000034
BBED> p kcvfhccc
ub4 kcvfhccc @184 0x00000033
SQL> select to_char(to_number('1900017210','xxxxxxxxxxxx'),'999999999999') from dual;
TO_CHAR(TO_NU
-------------
107374277136
和v$recover_file视图中查询出来一致
BBED> set dba 2,1 offset 140
DBA 0x00800001 (8388609 2,1)
OFFSET 140
BBED> show
FILE# 2
BLOCK# 1
OFFSET 140
DBA 0x00800001 (8388609 2,1)
FILENAME /opt/oracle/oradata/xifenfei/xff01.dbf
BIFILE bifile.bbd
LISTFILE /tmp/list
BLOCKSIZE 8192
MODE Edit
EDIT Unrecoverable
IBASE Dec
OBASE Dec
WIDTH 80
COUNT 32
LOGFILE log.bbd
SPOOL No
BBED> m /x dc750100
File: /opt/oracle/oradata/xifenfei/xff01.dbf (2)
Block: 1 Offsets: 140 to 171 Dba:0x00800001
------------------------------------------------------------------------
dc750100 19000000 27fa492d 01000000 05000000 186f0000 10001109 02000000
<32 bytes per line>
BBED> m /x bbfb492d offset 158
File: /opt/oracle/oradata/xifenfei/xff01.dbf (2)
Block: 1 Offsets: 158 to 189 Dba:0x00800001
------------------------------------------------------------------------
bbfb492d 00001000 11090200 00000000 00003400 00004cc0 492d3300 00000000
<32 bytes per line>
BBED> m /x 7a000000 offset 176
File: /opt/oracle/oradata/xifenfei/xff01.dbf (2)
Block: 1 Offsets: 176 to 207 Dba:0x00800001
------------------------------------------------------------------------
7a000000 4cc0492d 33000000 00000000 00000000 00000000 00000000 00000000
<32 bytes per line>
BBED> m /x 79000000 offset 184
File: /opt/oracle/oradata/xifenfei/xff01.dbf (2)
Block: 1 Offsets: 184 to 215 Dba:0x00800001
------------------------------------------------------------------------
79000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<32 bytes per line>
注意:p打印出来的值和m修改的值可能不是完全一致(和cpu的计算类型有关,常用的intel cpu中是倒序存储),可以选择先dump正确的相关值,然后m修改
如:p打印出来的值为:80084d1f时,m修改时要为: 1f4d0880
BBED> sum apply dba 2,1
Check value for File 2, Block 1:
current = 0x7ece, required = 0x7ece
SQL> shutdown immediate
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 236000356 bytes
Fixed Size 451684 bytes
Variable Size 201326592 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
Database mounted.
ORA-01122: database file 2 failed verification check
ORA-01110: data file 2: '/opt/oracle/oradata/xifenfei/xff01.dbf'
ORA-01207: file is more recent than controlfile - old controlfile
提示控制文件太老,需要重建控制文件
SQL> shutdown abort
ORACLE instance shut down.
SQL> STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "XIFENFEI" NORESETLOGS ARCHIVELOG
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXDATAFILES 100
MAXINSTANCES 1
MAXLOGHISTORY 226
LOGFILE
GROUP 1 '/opt/oracle/oradata/xifenfei/redo01.log' SIZE 100M,
GROUP 2 '/opt/oracle/oradata/xifenfei/redo02.log' SIZE 100M,
GROUP 3 '/opt/oracle/oradata/xifenfei/redo03.log' SIZE 100M
DATAFILE
'/opt/oracle/oradata/xifenfei/system01.dbf',
'/opt/oracle/oradata/xifenfei/xff01.dbf',
'/opt/oracle/oradata/xifenfei/cwmlite01.dbf',
'/opt/oracle/oradata/xifenfei/drsys01.dbf',
'/opt/oracle/oradata/xifenfei/example01.dbf',
'/opt/oracle/oradata/xifenfei/indx01.dbf',
'/opt/oracle/oradata/xifenfei/odm01.dbf',
'/opt/oracle/oradata/xifenfei/tools01.dbf',
'/opt/oracle/oradata/xifenfei/users01.dbf',
'/opt/oracle/oradata/xifenfei/xdb01.dbf',
'/opt/oracle/oradata/xifenfei/UNDOTBS01.dbf'
CHARACTER SET ZHS16GBK
;
ORACLE instance started.
Total System Global Area 236000356 bytes
Fixed Size 451684 bytes
Variable Size 201326592 bytes
Database Buffers 33554432 bytes
Redo Buffers 667648 bytes
SQL> 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Control file created.
SQL> alter database open;
Database altered.
SQL> ALTER TABLESPACE TEMP ADD TEMPFILE '/opt/oracle/oradata/xifenfei/temp01.dbf'
2 SIZE 32505856 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
重建控制文件后,需要添加临时文件
补充说明:
1、datafile 的file header 存储在第一个block里
2、Oracle considers four attributes of this data structure when determining if a datafile is sync with the other data files of the database:(不同oracle版本offset可能不同)
(1)kscnbas (at offset 140) – SCN of last change to the datafile.
(2)kcvcptim (at offset 148) -Time of the last change to the datafile.
(3)kcvfhcpc (at offset 176) – Checkpoint count.
(4)kcvfhccc (at offset 184) – Unknown, but is always 1 less than thecheckpoint point count.
Oracle有4个属性来判断datafile 是否和其他的datafile 一致,如果都一致,可以正常操作,如果不一致,那么会报ORA-01113错误
使用Oracle Recovery Tools一键式解决给问题
通过bbed查看数据块结构
BBED> map /v
File: /opt/oracle/oradata/xifenfei/xff01.dbf (2)
Block: 530 Dba:0x00800212
------------------------------------------------------------
KTB Data Block (Table/Cluster)
struct kcbh, 20 bytes @0
ub1 type_kcbh @0
ub1 frmt_kcbh @1
ub1 spare1_kcbh @2
ub1 spare2_kcbh @3
ub4 rdba_kcbh @4
ub4 bas_kcbh @8
ub2 wrp_kcbh @12
ub1 seq_kcbh @14
ub1 flg_kcbh @15
ub2 chkval_kcbh @16
ub2 spare3_kcbh @18
struct ktbbh, 72 bytes @20
ub1 ktbbhtyp @20
union ktbbhsid, 4 bytes @24
struct ktbbhcsc, 8 bytes @28
b2 ktbbhict @36
ub1 ktbbhflg @38
ub1 ktbbhfsl @39
ub4 ktbbhfnx @40
struct ktbbhitl[2], 48 bytes @44
struct kdbh, 14 bytes @92
ub1 kdbhflag @92
b1 kdbhntab @93
b2 kdbhnrow @94
sb2 kdbhfrre @96
sb2 kdbhfsbo @98
sb2 kdbhfseo @100
b2 kdbhavsp @102
b2 kdbhtosp @104
struct kdbt[1], 4 bytes @106
b2 kdbtoffs @106
b2 kdbtnrow @108
sb2 kdbr[101] @110
ub1 freespace[4270] @312
ub1 rowdata[3606] @4582
ub4 tailchk @8188
BBED>
////////////////////////////////////////////////////////////////////////////////////////
//////////// Block Header Structure, 20 bytes//////////////////////////////////////////
BBED> p kcbh
struct kcbh, 20 bytes @0
ub1 type_kcbh @0 -- Block Type
-- 01 - Undo segment header
-- 02 - Undo data block
-- 03 - Save undo header
-- 04 - Save undo data block
-- 05 - Data segment header
-- 06 - Trans data, KTB managed data block(with ITL)
-- 07 - Temp table data block (no ITL)
-- 08 - Sort key
-- 09 - Sort Run
-- 10 - Segment free list block
-- 11 - Data file header
ub1 frmt_kcbh @1 -- Block Format 1=Oracle7, 2=Oracle8+
ub1 spare1_kcbh @2 -- Not used, filler field
ub1 spare2_kcbh @3 -- Not used, filler field
ub4 rdba_kcbh @4 -- RDBA (4 bytes) - Relative Data Block Address
ub4 bas_kcbh @8 -- SCN Base (4 bytes)
ub2 wrp_kcbh @12 -- SCN Wrap (2 bytes)
ub1 seq_kcbh @14 -- Sequence Number, incremented for every change made to the block at the same SCN
ub1 flg_kcbh @15 -- Flag:
-- 0x01 New Block
-- 0x02 Delayed Logging Chang advanced SCN/seq
-- 0x04 Check value saved - block XOR's to Zero
-- 0x08 Temporary block
ub2 chkval_kcbh @16 -- Optional block checksum (if DB_BLOCK_CHECKSUM=TRUE)
ub2 spare3_kcbh @18 -- Not used, filler field
/////////////////////////////////////////////////////////////////////////////////////////
/////////Transaction Fixed Header Structure, 72 Bytes////////////////////////////////////
BBED> p ktbbh
struct ktbbh, 72 bytes @20
ub1 ktbbhtyp @20 -- Block type (1=DATA, 2=INDEX)
union ktbbhsid, 4 bytes @24 -- Segment/Object ID
struct ktbbhcsc, 8 bytes @28 -- SCN at last block cleanout
b2 ktbbhict @36 -- Number of ITL slots
ub1 ktbbhflg @38 -- 0=on the freelist
ub1 ktbbhfsl @39 -- ITL TX freelist slot
ub4 ktbbhfnx @40 -- DBA of next block on the freelist
struct ktbbhitl[2], 48 bytes @44 -- ITL list index, each ITL takes up 24 bytes
//////////////////////////////////////////////////////////////////////////////////////////
///////////////Data Header Structure, 14 bytes////////////////////////////////////////////
BBED> p kdbh
struct kdbh, 14 bytes @100
ub1 kdbhflag @100 -- N=pctfree hit(clusters)
-- F=do not put on freelist
-- K=flushable cluster keys
b1 kdbhntab @101 -- Number of tables (>1 in clusters)
b2 kdbhnrow @102 -- Number of rows (2 bytes)
sb2 kdbhfrre @104 -- First free row entry index; -1=you have to add one
sb2 kdbhfsbo @106 -- Freespace begin offset
sb2 kdbhfseo @108 -- Freespace end offset
b2 kdbhavsp @110 -- Available space in the block
b2 kdbhtosp @112 -- Total available space when all TXs commit
////////////////////////////////////////////////////////////////////////////////////////
/////////////////////Table Directory Entry Structure, 4 bytes///////////////////////////
BBED> p kdbt
struct kdbt[1], 4 bytes @114
b2 kdbtoffs @114
b2 kdbtnrow @116
////////////////////////////////////////////////////////////////////////////////////////
////////////////// Row Directory ///////////////////////////////////////////////////////
BBED> p kdbr[100]
sb2 kdbr[100] @310
////////////////////////////////////////////////////////////////////////////////////////
///////////////// Free Space ///////////////////////////////////////////////////////////
BBED> p freespace[4269]
ub1 freespace[4269] @4581
///////////////////////////////////////////////////////////////////////////////////////
/////////////////////Row Data//////////////////////////////////////////////////////////
BBED> p rowdata[3605]
ub1 rowdata[3605] @8187 0x00
//////////////////////////////////////////////////////////////////////////////////////
/////////////////////Block Tail Check, 4 bytes////////////////////////////////////////
BBED> p tailchk
ub4 tailchk @8188 0x24500601
说明事宜:
1、tailchk=Lower order two bytes of SCN Base(bas_kcbh) + Block Type(type_kcbh) + SCN Seq(seq_kcbh)
2、块的scn为:scn=wrp_kcbh+bas_kcbh
求scn语句:select to_char(to_number(‘scn’,’xxxxxxxxxx’),’999999999999′) from dual;
3、dba求文件号,块号为:
set serveroutput on
declare
p_dba VARCHAR2 (255) :='0x00800212';
l_str VARCHAR2 (255) DEFAULT NULL;
BEGIN
l_str :=
'datafile# is:'
|| DBMS_UTILITY.data_block_address_file (TO_NUMBER (LTRIM (p_dba, '0x'),'xxxxxxxx'))
|| chr(10)||'datablock is:'
|| DBMS_UTILITY.data_block_address_block (TO_NUMBER (LTRIM (p_dba, '0x'),'xxxxxxxx'));
dbms_output.put_line(l_str);
END;

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