这里个bbed的测试是为了实现通过bbed来实现删除index,该方法有两个用途:
1.数据库因为index出了问题不能启动,使用该方法可以屏蔽index,来实现数据库正常启动
2.bootstrap$中的某个index异常
准备环境
SQL> conn chf/xifenfei
Connected.
SQL> create table t_xifenfei
2 as
3 select * from dba_objects;
Table created.
SQL> create index ind_t_xifenfei on t_xifenfei(object_id);
Index created.
SQL> SET LINES 150
SQL> col owner for a5
SQL> select OWNER,INDEX_NAME,TABLE_NAME,status from dba_indexes where index_name='IND_T_XIFENFEI';
OWNER INDEX_NAME TABLE_NAME STATUS
----- ------------------------------ ------------------------------ --------
CHF IND_T_XIFENFEI T_XIFENFEI VALID
SQL> select object_id from dba_objects where object_name='IND_T_XIFENFEI';
OBJECT_ID
----------
75558
SQL> select obj#,dataobj#,ts#,file#,block#,bo#,FLAGS from sys.ind$ where obj#=75558;
OBJ# DATAOBJ# TS# FILE# BLOCK# BO# FLAGS
---------- ---------- ---------- ---------- ---------- ---------- ----------
75558 75558 4 4 298 75557 2
SQL> select rowid,
2 dbms_rowid.rowid_relative_fno(rowid)rel_fno,
3 dbms_rowid.rowid_block_number(rowid)blockno,
4 dbms_rowid.rowid_row_number(rowid) rowno
5 from sys.ind$ where obj#=75558;
ROWID REL_FNO BLOCKNO ROWNO
------------------ ---------- ---------- ----------
AAAAACAABAAAT50AAA 1 81524 0
SQL> alter system checkpoint;
System altered.
SQL> select dump(75558,'16') from dual;
DUMP(75558,'16')
-----------------------
Typ=2 Len=4: c3,8,38,3b
SQL> select dump(4,'16') from dual;
DUMP(4,'16')
-----------------
Typ=2 Len=2: c1,5
SQL> select dump(298,'16') from dual;
DUMP(298,'16')
--------------------
Typ=2 Len=3: c2,3,63
SQL> select dump(75557,'16') from dual;
DUMP(75557,'16')
-----------------------
Typ=2 Len=4: c3,8,38,3a
SQL> conn / as sysdba
Connected.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
删除ind$中记录
[oracle@xifenfei ~]$ bbed listfile=listfile mode=edit password=blockedit
BBED: Release 2.0.0.0.0 - Limited Production on Thu Aug 9 17:09:55 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
************* !!! For Oracle Internal Use only !!! ***************
BBED> info all
File# Name Size(blks)
----- ---- ----------
1 /u01/oracle/oradata/ora11g/system01.dbf 0
2 /u01/oracle/oradata/ora11g/sysaux01.dbf 0
3 /u01/oracle/oradata/ora11g/undotbs01.dbf 0
4 /u01/oracle/oradata/ora11g/users01.dbf 0
BBED> set file 1 block 81524
FILE# 1
BLOCK# 81524
BBED> map
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Dba:0x00413e74
------------------------------------------------------------
KTB Data Block (Table/Cluster)
struct kcbh, 20 bytes @0
struct ktbbh, 72 bytes @20
struct kdbh, 14 bytes @92
struct kdbt[6], 24 bytes @106
sb2 kdbr[33] @130
ub1 freespace[5420] @196
ub1 rowdata[2572] @5616
ub4 tailchk @8188
BBED> p kdbr
sb2 kdbr[0] @130 8074
sb2 kdbr[1] @132 7987
sb2 kdbr[2] @134 7896
sb2 kdbr[3] @136 7618
sb2 kdbr[4] @138 7523
sb2 kdbr[5] @140 6700
sb2 kdbr[6] @142 6573
sb2 kdbr[7] @144 5524
sb2 kdbr[8] @146 5633
sb2 kdbr[9] @148 -1
sb2 kdbr[10] @150 7771
sb2 kdbr[11] @152 7703
sb2 kdbr[12] @154 7642
sb2 kdbr[13] @156 7546
sb2 kdbr[14] @158 7459
sb2 kdbr[15] @160 7397
sb2 kdbr[16] @162 7330
sb2 kdbr[17] @164 7267
sb2 kdbr[18] @166 6516
sb2 kdbr[19] @168 6450
sb2 kdbr[20] @170 6384
sb2 kdbr[21] @172 6327
sb2 kdbr[22] @174 6265
sb2 kdbr[23] @176 6202
sb2 kdbr[24] @178 6147
sb2 kdbr[25] @180 6086
sb2 kdbr[26] @182 6025
sb2 kdbr[27] @184 5967
sb2 kdbr[28] @186 5906
sb2 kdbr[29] @188 5845
sb2 kdbr[30] @190 5784
sb2 kdbr[31] @192 5727
sb2 kdbr[32] @194 5663
--这里使用直接查看的方法,来找出来ind$中相关记录,实际中方法很多find/第三方工具都可以
BBED> p *kdbr[0]
rowdata[2550]
-------------
ub1 rowdata[2550] @8166 0xac
BBED> x /rn
rowdata[2550] @8166
-------------
flag@8166: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@8167: 0x00
cols@8168: 1
kref@8169: 1
mref@8171: 1
hrid@8173:0x00400095.1
nrid@8179:0x00400095.1
col 0[2] @8185: 80
BBED> p *kdbr[1]
rowdata[2463]
-------------
ub1 rowdata[2463] @8079 0xac
BBED> x /rn
rowdata[2463] @8079
-------------
flag@8079: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@8080: 0x00
cols@8081: 1
kref@8082: 1
mref@8084: 1
hrid@8086:0x004000a1.1
nrid@8092:0x004000a1.1
col 0[3] @8098: 330
BBED> p *kdbr[2]
rowdata[2372]
-------------
ub1 rowdata[2372] @7988 0xac
BBED> x /rn
rowdata[2372] @7988
-------------
flag@7988: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@7989: 0x00
cols@7990: 1
kref@7991: 1
mref@7993: 1
hrid@7995:0x004000a7.6
nrid@8001:0x004000a7.6
col 0[3] @8007: 471
BBED> p *kdbr[3]
rowdata[2094]
-------------
ub1 rowdata[2094] @7710 0xac
BBED> x /rn
rowdata[2094] @7710
-------------
flag@7710: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@7711: 0x00
cols@7712: 1
kref@7713: 1
mref@7715: 1
hrid@7717:0x0040eb9a.6
nrid@7723:0x0040eb9a.6
col 0[4] @7729: 59484
BBED> p *kdbr[4]
rowdata[1999]
-------------
ub1 rowdata[1999] @7615 0xac
BBED> x /rn
rowdata[1999] @7615
-------------
flag@7615: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@7616: 0x00
cols@7617: 1
kref@7618: 4
mref@7620: 4
hrid@7622:0x00403371.6
nrid@7628:0x00403371.6
col 0[3] @7634: 8871
BBED> p *kdbr[5]
rowdata[1176]
-------------
ub1 rowdata[1176] @6792 0xac
BBED> x /rn
rowdata[1176] @6792
-------------
flag@6792: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@6793: 0x00
cols@6794: 1
kref@6795: 18
mref@6797: 18
hrid@6799:0x00413e74.5
nrid@6805:0x00413e74.5
col 0[4] @6811: 75557
BBED> p *kdbr[6]
rowdata[1049]
-------------
ub1 rowdata[1049] @6665 0x6c
BBED> x /rn
rowdata[1049] @6665
-------------
flag@6665: 0x6c (KDRHFL, KDRHFF, KDRHFH, KDRHFC)
lock@6666: 0x00
cols@6667: 36
ckix@6668: 5
col 0[4] @6669: 75557
col 1[2] @6674: 4
col 2[2] @6677: 4
col 3[3] @6680: 170
col 4[0] @6684: *NULL*
col 5[0] @6685: *NULL*
col 6[2] @6686: 15
col 7[0] @6689: *NULL*
col 8[2] @6690: 10
col 9[2] @6693: 40
col 10[2] @6696: 1
col 11[3] @6699: 255
col 12[6] @6703: 1073741825
col 13[38] @6710: 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d
0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d
0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d 0x2d
0x2d 0x2d
col 14[0] @6749: *NULL*
col 15[0] @6750: *NULL*
col 16[0] @6751: *NULL*
col 17[0] @6752: *NULL*
col 18[0] @6753: *NULL*
col 19[0] @6754: *NULL*
col 20[0] @6755: *NULL*
col 21[0] @6756: *NULL*
col 22[0] @6757: *NULL*
col 23[0] @6758: *NULL*
col 24[0] @6759: *NULL*
col 25[0] @6760: *NULL*
col 26[2] @6761: 15
col 27[2] @6764: 15
col 28[6] @6767: 536870912
col 29[1] @6774: 0
col 30[3] @6776: 736
col 31[0] @6780: *NULL*
col 32[0] @6781: *NULL*
col 33[0] @6782: *NULL*
col 34[0] @6783: *NULL*
col 35[7] @6784: #########################################
BBED> p *kdbr[7]
rowdata[0]
----------
ub1 rowdata[0] @5616 0x6c
BBED> x /rn
rowdata[0] @5616
----------
flag@5616: 0x6c (KDRHFL, KDRHFF, KDRHFH, KDRHFC)
lock@5617: 0x02
cols@5618: 33
ckix@5619: 5
col 0[4] @5620: 75558
col 1[4] @5625: 75558
col 2[2] @5630: 4
col 3[2] @5633: 4
col 4[3] @5636: 298
col 5[1] @5640: 0
col 6[2] @5642: 1
col 7[2] @5645: 10
col 8[2] @5648: 2
col 9[3] @5651: 255
col 10[0] @5655: *NULL*
col 11[2] @5656: 1
col 12[2] @5659: 2
col 13[1] @5662: 0
col 14[2] @5664: 1
col 15[3] @5667: 165
col 16[4] @5671: 74491
col 17[2] @5676: 1
col 18[2] @5679: 1
col 19[3] @5682: 1720
col 20[7] @5686: #########################################
col 21[4] @5694: 74491
col 22[4] @5699: 74491
col 23[2] @5704: 1
col 24[0] @5707: *NULL*
col 25[0] @5708: *NULL*
col 26[0] @5709: *NULL*
col 27[2] @5710: 1
col 28[0] @5713: *NULL*
col 29[0] @5714: *NULL*
col 30[0] @5715: *NULL*
col 31[0] @5716: *NULL*
col 32[7] @5717: #########################################
BBED> set count 64
COUNT 64
BBED> d
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 5616 to 5679 Dba:0x00413e74
------------------------------------------------------------------------
6c022105 04c30838 3b04c308 383b02c1 0502c105 03c20363 018002c1 0202c10b
02c10303 c20338ff 02c10202 c1030180 02c10203 c2024204 c3082d5c 02c10202
<32 bytes per line>
BBED> m /x 7c
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 5616 to 5679 Dba:0x00413e74
------------------------------------------------------------------------
7c022105 04c30838 3b04c308 383b02c1 0502c105 03c20363 018002c1 0202c10b
02c10303 c20338ff 02c10202 c1030180 02c10203 c2024204 c3082d5c 02c10202
<32 bytes per line>
BBED> sum apply
Check value for File 1, Block 81524:
current = 0x88be, required = 0x88be
BBED> verify
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/ora11g/system01.dbf
BLOCK = 81524
Block Checking: DBA = 4275828, Block Type = KTB-managed data block
data header at 0xb53c625c
kdbchk: key comref count wrong
keyslot=5
Block 81524 failed with check code 6121
DBVERIFY - Verification complete
Total Blocks Examined : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing (Index): 0
Total Blocks Empty : 0
Total Blocks Marked Corrupt : 0
Total Blocks Influx : 0
Message 531 not found; product=RDBMS; facility=BBED
BBED> p *kdbr[5]
rowdata[1176]
-------------
ub1 rowdata[1176] @6792 0xac
BBED> x /rn
rowdata[1176] @6792
-------------
flag@6792: 0xac (KDRHFL, KDRHFF, KDRHFH, KDRHFK)
lock@6793: 0x00
cols@6794: 1
kref@6795: 18
mref@6797: 18
hrid@6799:0x00413e74.5
nrid@6805:0x00413e74.5
col 0[4] @6811: 75557
BBED> d offset 6797
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 6797 to 6860 Dba:0x00413e74
------------------------------------------------------------------------
12000041 3e740005 00413e74 000504c3 08383a7c 02140502 c10602c1 0602c102
01800d52 4f4c4c42 41434b5f 4f4e4c59 02c16102 c1020180 ffff0180 ffff02c1
<32 bytes per line>
BBED> m /x 11
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 6797 to 6860 Dba:0x00413e74
------------------------------------------------------------------------
11000041 3e740005 00413e74 000504c3 08383a7c 02140502 c10602c1 0602c102
01800d52 4f4c4c42 41434b5f 4f4e4c59 02c16102 c1020180 ffff0180 ffff02c1
<32 bytes per line>
BBED> sum apply
Check value for File 1, Block 81524:
current = 0x8bbe, required = 0x8bbe
BBED> verify
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/ora11g/system01.dbf
BLOCK = 81524
Block Checking: DBA = 4275828, Block Type = KTB-managed data block
data header at 0xb53c625c
kdbchk: the amount of space used is not equal to block size
used=1835 fsc=0 avsp=6156 dtl=8096
Block 81524 failed with check code 6110
DBVERIFY - Verification complete
Total Blocks Examined : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing (Index): 0
Total Blocks Empty : 0
Total Blocks Marked Corrupt : 0
Total Blocks Influx : 0
Message 531 not found; product=RDBMS; facility=BBED
BBED> p kdbh
struct kdbh, 14 bytes @92
ub1 kdbhflag @92 0x00 (NONE)
sb1 kdbhntab @93 6
sb2 kdbhnrow @94 33
sb2 kdbhfrre @96 9
sb2 kdbhfsbo @98 104
sb2 kdbhfseo @100 5524
sb2 kdbhavsp @102 6156
sb2 kdbhtosp @104 6156
BBED> d offset 102
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 102 to 165 Dba:0x00413e74
------------------------------------------------------------------------
0c180c18 00000600 06000100 07000000 07000100 08000200 0a001700 8a1f331f
d81ec21d 631d2c1a ad199415 0116ffff 5b1e171e da1d7a1d 231de51c a21c631c
<32 bytes per line>
BBED> m /x 7518
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 102 to 165 Dba:0x00413e74
------------------------------------------------------------------------
75180c18 00000600 06000100 07000000 07000100 08000200 0a001700 8a1f331f
d81ec21d 631d2c1a ad199415 0116ffff 5b1e171e da1d7a1d 231de51c a21c631c
<32 bytes per line>
BBED> m /x 7518 offset 104
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 104 to 167 Dba:0x00413e74
------------------------------------------------------------------------
75180000 06000600 01000700 00000700 01000800 02000a00 17008a1f 331fd81e
c21d631d 2c1aad19 94150116 ffff5b1e 171eda1d 7a1d231d e51ca21c 631c7419
<32 bytes per line>
BBED> p kdbh
struct kdbh, 14 bytes @92
ub1 kdbhflag @92 0x00 (NONE)
sb1 kdbhntab @93 6
sb2 kdbhnrow @94 33
sb2 kdbhfrre @96 9
sb2 kdbhfsbo @98 104
sb2 kdbhfseo @100 5524
sb2 kdbhavsp @102 6261
sb2 kdbhtosp @104 6261
BBED> sum apply
Check value for File 1, Block 81524:
current = 0x8bbe, required = 0x8bbe
BBED> verify
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/ora11g/system01.dbf
BLOCK = 81524
Block Checking: DBA = 4275828, Block Type = KTB-managed data block
data header at 0xb53c625c
kdbchk: space available on commit is incorrect
tosp=6261 fsc=0 stb=4 avsp=6261
Block 81524 failed with check code 6111
DBVERIFY - Verification complete
Total Blocks Examined : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing (Index): 0
Total Blocks Empty : 0
Total Blocks Marked Corrupt : 0
Total Blocks Influx : 0
Message 531 not found; product=RDBMS; facility=BBED
BBED> m /x 7918 offset 104
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 81524 Offsets: 104 to 167 Dba:0x00413e74
------------------------------------------------------------------------
79180000 06000600 01000700 00000700 01000800 02000a00 17008a1f 331fd81e
c21d631d 2c1aad19 94150116 ffff5b1e 171eda1d 7a1d231d e51ca21c 631c7419
<32 bytes per line>
BBED> sum apply
Check value for File 1, Block 81524:
current = 0x8bb2, required = 0x8bb2
BBED> verify
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/ora11g/system01.dbf
BLOCK = 81524
DBVERIFY - Verification complete
Total Blocks Examined : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing (Data) : 0
Total Blocks Processed (Index): 0
Total Blocks Failing (Index): 0
Total Blocks Empty : 0
Total Blocks Marked Corrupt : 0
Total Blocks Influx : 0
Message 531 not found; product=RDBMS; facility=BBED
启动数据库测试ind$是否修改成功
SQL> startup
ORACLE instance started.
Total System Global Area 230162432 bytes
Fixed Size 1344088 bytes
Variable Size 88083880 bytes
Database Buffers 134217728 bytes
Redo Buffers 6516736 bytes
Database mounted.
Database opened.
SQL> select OWNER,INDEX_NAME,TABLE_NAME,status from dba_indexes where index_name='IND_T_XIFENFEI';
select OWNER,INDEX_NAME,TABLE_NAME,status from dba_indexes where index_name='IND_T_XIFENFEI'
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [kdsgrp1], [], [], [], [], [], [],
[], [], [], [], []
SQL> set autot trace exp
SQL> set lines 150
SQL> select /*+ full(t) */obj#,dataobj#,ts#,file#,block#,bo#,FLAGS,rowid from sys.ind$ t where obj#=75558;
Execution Plan
----------------------------------------------------------
Plan hash value: 3378156415
--------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 41 | 206 (0)| 00:00:03 |
|* 1 | TABLE ACCESS FULL| IND$ | 1 | 41 | 206 (0)| 00:00:03 |
--------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter("OBJ#"=75558)
SQL> select obj#,dataobj#,ts#,file#,block#,bo#,FLAGS,rowid from sys.ind$ t where obj#=75558;
Execution Plan
----------------------------------------------------------
Plan hash value: 3312860272
--------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
--------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 41 | 2 (0)| 00:00:01 |
| 1 | TABLE ACCESS BY INDEX ROWID| IND$ | 1 | 41 | 2 (0)| 00:00:01 |
|* 2 | INDEX UNIQUE SCAN | I_IND1 | 1 | | 1 (0)| 00:00:01 |
--------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - access("OBJ#"=75558)
SQL> select count(*) from ind$ where obj#=75558;
Execution Plan
----------------------------------------------------------
Plan hash value: 4150977594
-----------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-----------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 5 | 1 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 5 | | |
|* 2 | INDEX UNIQUE SCAN| I_IND1 | 1 | 5 | 1 (0)| 00:00:01 |
-----------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - access("OBJ#"=75558)
SQL> select /*+ full(t) */ count(*) from sys.ind$ t where obj#=75558;
Execution Plan
----------------------------------------------------------
Plan hash value: 809192456
---------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
---------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 5 | 206 (0)| 00:00:03 |
| 1 | SORT AGGREGATE | | 1 | 5 | | |
|* 2 | TABLE ACCESS FULL| IND$ | 1 | 5 | 206 (0)| 00:00:03 |
---------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
2 - filter("OBJ#"=75558)
SQL> set autot off
SQL> select /*+ full(t) */obj#,dataobj#,ts#,file#,block#,bo#,FLAGS,rowid from sys.ind$ t where obj#=75558;
no rows selected
SQL> select obj#,dataobj#,ts#,file#,block#,bo#,FLAGS,rowid from sys.ind$ t where obj#=75558;
OBJ# DATAOBJ# TS# FILE# BLOCK# BO# FLAGS ROWID
---------- ---------- ---------- ---------- ---------- ---------- ---------- ------------------
75558 75558 4 4 298 75557 2 AAAAACAABAAAT50AAA
SQL> select count(*) from ind$ where obj#=75558;
COUNT(*)
----------
1
SQL> select /*+ full(t) */ count(*) from sys.ind$ t where obj#=75558;
COUNT(*)
----------
0
SQL> COL COLUMN_NAME FOR A15
SQL> SELECT INDEX_OWNER,COLUMN_NAME,INDEX_NAME FROM DBA_IND_COLUMNS WHERE TABLE_NAME='IND$' AND TABLE_OWNER='SYS';
INDEX_OWNER COLUMN_NAME INDEX_NAME
------------------------------ --------------- ------------------------------
SYS OBJ# I_IND1
通过上面的查询我们可以知道ind$本身有一个关于obj#列的index,当我们查询使用该index的时候出现上面的ora-600[kdsgrp1]错误.而因为ind$相关index是bootstarp$中对象,不能直接或者upgrade,甚至event 38003都不能drop或者rebuid
分析I_IND1 索引信息
SQL> select obj#,dataobj# from obj$ where name='I_IND1';
OBJ# DATAOBJ#
---------- ----------
41 41
SQL> alter session set events 'immediate trace name treedump level 41';
Session altered.
SQL> select value from v$diag_info where name='Default Trace File';
VALUE
---------------------------------------------------------------------------------------
/u01/oracle/diag/rdbms/ora11g/ora11g/trace/ora11g_ora_17321.trc
--通过这个dump出来的rdba信息,结合我们dump出来其他数据块信息可以找到叶子节点的值用来匹配我们需要delete值在I_IND1中位置
----- begin tree dump
branch: 0x400179 4194681 (0: nrow: 10, level: 1)
leaf: 0x40017a 4194682 (-1: nrow: 575 rrow: 575)
leaf: 0x40017b 4194683 (0: nrow: 569 rrow: 567)
leaf: 0x40017c 4194684 (1: nrow: 540 rrow: 540)
leaf: 0x40017d 4194685 (2: nrow: 533 rrow: 533)
leaf: 0x40017e 4194686 (3: nrow: 362 rrow: 361)
leaf: 0x40017f 4194687 (4: nrow: 533 rrow: 533)
leaf: 0x411d98 4267416 (5: nrow: 533 rrow: 532)
leaf: 0x411d99 4267417 (6: nrow: 533 rrow: 533)
leaf: 0x411d9a 4267418 (7: nrow: 533 rrow: 533)
leaf: 0x411d9b 4267419 (8: nrow: 386 rrow: 386)
----- end tree dump
SQL> set serveroutput on
SQL> declare
2 p_dba VARCHAR2 (255) :='0x00411d9b';
3 l_str VARCHAR2 (255) DEFAULT NULL;
4 BEGIN
5 l_str :=
6 'datafile# is:'
7 || DBMS_UTILITY.data_block_address_file (TO_NUMBER (LTRIM (p_dba, '0x'),'xxxxxxxx'))
8 || chr(10)||'datablock is:'
9 || DBMS_UTILITY.data_block_address_block (TO_NUMBER (LTRIM (p_dba, '0x'),'xxxxxxxx'));
10 dbms_output.put_line(l_str);
11 END;
12 /
datafile# is:1
datablock is:73115
PL/SQL procedure successfully completed.
SQL> alter system dump datafile 1 block 73115;
System altered.
SQL> select value from v$diag_info where name='Default Trace File';
VALUE
--------------------------------------------------------------------------------
/u01/oracle/diag/rdbms/ora11g/ora11g/trace/ora11g_ora_17583.trc
--找到对应块在叶子节点中的块的信息
Block header dump: 0x00411d9b
Object id on Block? Y
seg/obj: 0x29 csc: 0x00.c92c9 itc: 2 flg: O typ: 2 - INDEX
fsl: 0 fnx: 0x411d9c ver: 0x01
Itl Xid Uba Flag Lck Scn/Fsc
0x01 0x0001.002.000001c6 0x00c0483f.004a.01 CB-- 0 scn 0x0000.000a66a1
0x02 0x0006.009.000002b3 0x00c02389.0075.2e --U- 1 fsc 0x0000.000c92cb
row#385[2538] flag: ------, lock: 2, len=13, data:(6): 00 41 3e 74 00 00
col 0; len 4; (4): c3 08 38 3b
--对于ASSM：76+（itc-1)*24
--对于MSSM：68+（itc-1)*24
SQL> select 2538+68+(2-1)*24 from dual;
2538+68+(2-1)*24
----------------
2630
bbed修改I_IND1中记录
[oracle@xifenfei ~]$ bbed listfile=listfile mode=edit password=blockedit
BBED: Release 2.0.0.0.0 - Limited Production on Thu Aug 9 17:36:59 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
************* !!! For Oracle Internal Use only !!! ***************
BBED> set block 73115
BLOCK# 73115
BBED> set offset 2630
OFFSET 2630
BBED> x /rn
rowdata[4] @2630
----------
flag@2630: 0x00 (NONE)
lock@2631: 0x02
keydata[6]: 0x00 0x41 0x3e 0x74 0x00 0x00
data key:
col 0[4] @2639: 75558
BBED> set count 64
COUNT 64
BBED> d
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Offsets: 2630 to 2693 Dba:0x00411d9b
------------------------------------------------------------------------
00020041 3e740000 04c30838 3b000000 40264a00 0104c308 38380100 0040264a
000004c3 08383701 00004026 4a000004 c3083832 01000040 264a0001 04c30838
<32 bytes per line>
BBED> m /x 01
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Offsets: 2630 to 2693 Dba:0x00411d9b
------------------------------------------------------------------------
01020041 3e740000 04c30838 3b000000 40264a00 0104c308 38380100 0040264a
000004c3 08383701 00004026 4a000004 c3083832 01000040 264a0001 04c30838
<32 bytes per line>
BBED> sum apply
Check value for File 1, Block 73115:
current = 0xe027, required = 0xe027
BBED> verify
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/ora11g/system01.dbf
BLOCK = 73115
Block Checking: DBA = 4267419, Block Type = KTB-managed data block
**** actual free space credit for itl 2 = 15 != # in trans. hdr = 0 <----修改_ktbitfsc信息
**** actual rows marked deleted = 1 != kdxlende = 0 <----修改kdxlende信息
---- end index block validation
Block 73115 failed with check code 6401
DBVERIFY - Verification complete
Total Blocks Examined : 1
Total Blocks Processed (Data) : 0
Total Blocks Failing (Data) : 0
Total Blocks Processed (Index): 1
Total Blocks Failing (Index): 1
Total Blocks Empty : 0
Total Blocks Marked Corrupt : 0
Total Blocks Influx : 0
Message 531 not found; product=RDBMS; facility=BBED
BBED> map
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Dba:0x00411d9b
------------------------------------------------------------
KTB Data Block (Index Leaf)
struct kcbh, 20 bytes @0
struct ktbbh, 72 bytes @20
struct kdxle, 32 bytes @92
sb2 kd_off[386] @124
ub1 freespace[1730] @896
ub1 rowdata[5494] @2626
ub4 tailchk @8188
BBED> p kdxle
struct kdxle, 32 bytes @92
struct kdxlexco, 16 bytes @92
ub1 kdxcolev @92 0x00
ub1 kdxcolok @93 0x00
ub1 kdxcoopc @94 0x80
ub1 kdxconco @95 0x01
ub4 kdxcosdc @96 0x00000001
sb2 kdxconro @100 386
sb2 kdxcofbo @102 808
sb2 kdxcofeo @104 2538
sb2 kdxcoavs @106 2210
sb2 kdxlespl @108 0
sb2 kdxlende @110 0 <----需要修改
ub4 kdxlenxt @112 0x00000000
ub4 kdxleprv @116 0x00411d9a
ub1 kdxledsz @120 0x06
ub1 kdxleflg @121 0x00 (NONE)
BBED> d offset 110
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Offsets: 110 to 173 Dba:0x00411d9b
------------------------------------------------------------------------
00000000 00009a1d 41000600 0e00601f 0000531f 461f391f 2c1f1f1f 121f051f
f81eeb1e de1ed11e c41eb71e aa1e9d1e 901e831e 761e691e 5c1e4f1e 421e351e
<32 bytes per line>
BBED> m /x 01
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Offsets: 110 to 173 Dba:0x00411d9b
------------------------------------------------------------------------
01000000 00009a1d 41000600 0e00601f 0000531f 461f391f 2c1f1f1f 121f051f
f81eeb1e de1ed11e c41eb71e aa1e9d1e 901e831e 761e691e 5c1e4f1e 421e351e
<32 bytes per line>
BBED> p ktbbh
struct ktbbh, 72 bytes @20
ub1 ktbbhtyp @20 0x02 (KDDBTINDEX)
union ktbbhsid, 4 bytes @24
ub4 ktbbhsg1 @24 0x00000029
ub4 ktbbhod1 @24 0x00000029
struct ktbbhcsc, 8 bytes @28
ub4 kscnbas @28 0x000c92c9
ub2 kscnwrp @32 0x0000
sb2 ktbbhict @36 2
ub1 ktbbhflg @38 0x03 (KTBFONFL)
ub1 ktbbhfsl @39 0x00
ub4 ktbbhfnx @40 0x00411d9c
struct ktbbhitl[0], 24 bytes @44
struct ktbitxid, 8 bytes @44
ub2 kxidusn @44 0x0001
ub2 kxidslt @46 0x0002
ub4 kxidsqn @48 0x000001c6
struct ktbituba, 8 bytes @52
ub4 kubadba @52 0x00c0483f
ub2 kubaseq @56 0x004a
ub1 kubarec @58 0x01
ub2 ktbitflg @60 0xc000 (KTBFIBI, KTBFCOM)
union _ktbitun, 2 bytes @62
sb2 _ktbitfsc @62 0
ub2 _ktbitwrp @62 0x0000
ub4 ktbitbas @64 0x000a66a1
struct ktbbhitl[1], 24 bytes @68
struct ktbitxid, 8 bytes @68
ub2 kxidusn @68 0x0006
ub2 kxidslt @70 0x0009
ub4 kxidsqn @72 0x000002b3
struct ktbituba, 8 bytes @76
ub4 kubadba @76 0x00c02389
ub2 kubaseq @80 0x0075
ub1 kubarec @82 0x2e
ub2 ktbitflg @84 0x2001 (KTBFUPB)
union _ktbitun, 2 bytes @86
sb2 _ktbitfsc @86 0 <----需要修改
ub2 _ktbitwrp @86 0x0000
ub4 ktbitbas @88 0x000c92cb
BBED> d offset 86
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Offsets: 86 to 149 Dba:0x00411d9b
------------------------------------------------------------------------
0000cb92 0c000000 80010100 00008201 2803ea09 a2080000 01000000 00009a1d
41000600 0e00601f 0000531f 461f391f 2c1f1f1f 121f051f f81eeb1e de1ed11e
<32 bytes per line>
BBED> m /x 0f
File: /u01/oracle/oradata/ora11g/system01.dbf (1)
Block: 73115 Offsets: 86 to 149 Dba:0x00411d9b
------------------------------------------------------------------------
0f00cb92 0c000000 80010100 00008201 2803ea09 a2080000 01000000 00009a1d
41000600 0e00601f 0000531f 461f391f 2c1f1f1f 121f051f f81eeb1e de1ed11e
<32 bytes per line>
BBED> sum apply
Check value for File 1, Block 73115:
current = 0xe029, required = 0xe029
BBED> verify
DBVERIFY - Verification starting
FILE = /u01/oracle/oradata/ora11g/system01.dbf
BLOCK = 73115
DBVERIFY - Verification complete
Total Blocks Examined : 1
Total Blocks Processed (Data) : 0
Total Blocks Failing (Data) : 0
Total Blocks Processed (Index): 1
Total Blocks Failing (Index): 0
Total Blocks Empty : 0
Total Blocks Marked Corrupt : 0
Total Blocks Influx : 0
Message 531 not found; product=RDBMS; facility=BBED
启动数据库测试
SQL> startup
ORACLE instance started.
Total System Global Area 230162432 bytes
Fixed Size 1344088 bytes
Variable Size 88083880 bytes
Database Buffers 134217728 bytes
Redo Buffers 6516736 bytes
Database mounted.
Database opened.
SQL> select count(*) from ind$ where obj#=75558;
COUNT(*)
----------
0
SQL> select /*+ full(t) */ count(*) from sys.ind$ t where obj#=75558;
COUNT(*)
----------
0
SQL> select OWNER,INDEX_NAME,TABLE_NAME,status from dba_indexes where index_name='IND_T_XIFENFEI';
no rows selected
扫尾和测试工作
SQL> delete from obj$ where obj# =75558;
1 row deleted.
SQL> delete from icol$ where obj#=75558;
1 row deleted.
SQL> delete from seg$ where ts#=4 and file#=4 and block#=298;
1 row deleted.
SQL> commit;
Commit complete.
--重新创建/删除一个同名的index成功
SQL> create index chf.ind_t_xifenfei on chf.t_xifenfei(object_id);
Index created.
SQL> drop index chf.ind_t_xifenfei;
Index dropped.
通过以上对于ind$和I_IND1操作大体上完成对于ind_t_xifenfei索引的手工删除,比较完美的实现了bbed drop index操作过程.
