ORACLE检查找出损坏索引(Corrupt Indexes)的方法详解

SQL> create tablespace test_data 
2 datafile '/u01/app/oracle/oradata/gsp/test_data_01.dbf' 
3 size 200M autoextend off
4 logging
5 segment space management auto
6 extent management local;

Tablespace created.

SQL> create tablespace test_index 
2 datafile '/u01/app/oracle/oradata/gsp/test_idx_01.dbf' 
3 size 200M autoextend off
4 logging
5 segment space management auto
6 extent management local;

Tablespace created.


SQL> create user kerry
2 identified by 123456
3 default tablespace test_data;

User created.

SQL> grant connect to kerry;
SQL> grant resource to kerry;

SQL> show user;
USER is "KERRY"
SQL> 
SQL> CREATE TABLE TEST(ID NUMBER(10), NAME VARCHAR2(64));

Table created.

SQL> DECLARE I NUMBER;
2 BEGIN
3 FOR I IN 1..1000 LOOP
4 INSERT INTO TEST VALUES(I, LPAD('T', 60)); 
5 END LOOP;
6 COMMIT;
7 END;
8 /

PL/SQL procedure successfully completed.


SQL> CREATE INDEX IX_TEST ON KERRY.TEST(NAME) TABLESPACE TEST_INDEX;

Index created.

SQL> show user;
USER is "SYS"
SQL> col segment_name for a32; 
SQL> col header_file for 9999; 
SQL> col header_block for 9999; 
SQL> select segment_name 
2 ,header_file 
3 ,header_block 
4 ,blocks 
5 from dba_segments ds 
6 where ds.owner='KERRY' and ds.segment_name='IX_TEST'; 

SEGMENT_NAME HEADER_FILE HEADER_BLOCK BLOCKS
-------------------------------- ----------- ------------ ----------
IX_TEST 8 130 16

SQL>

[oracle@DB-Server ~]$ rman target /

Recovery Manager: Release 11.2.0.1.0 - Production on Thu Sep 13 17:41:05 2018

Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.

connected to target database: GSP (DBID=644393201)

RMAN> recover datafile 8 block 130 clear;

Starting recover at 13-SEP-18
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=12 device type=DISK
Finished recover at 13-SEP-18

RMAN> 

[oracle@DB-Server ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Thu Sep 13 17:42:03 2018

Copyright (c) 1982, 2009, Oracle. All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> analyze index kerry.ix_test validate structure;
analyze index kerry.ix_test validate structure
*
ERROR at line 1:
ORA-01578: ORACLE data block corrupted (file # 8, block # 130)
ORA-01110: data file 8: '/u01/app/oracle/oradata/gsp/test_idx_01.dbf'

spool analy_index.sql
SET PAGESIZE 50000;
SELECT
'ANALYZE INDEX ' || OWNER || '.' || INDEX_NAME|| ' VALIDATE STRUCTURE;' FROM DBA_INDEXES;

spool off;

@analy_index.sql

set pagesize 50 linesize 170
col segment_name format a30
col partition_name format a30
SELECT DISTINCT file#, 
segment_name, 
segment_type, 
tablespace_name, 
partition_name 
FROM dba_extents a, 
v$database_block_corruption b 
WHERE a.file_id = b.file# 
AND a.block_id <= b.block# 
AND a.block_id + a.blocks >= b.block#; 

SQL> SELECT file_id, 
2 segment_name, 
3 segment_type 
4 FROM dba_extents 
5 WHERE file_id = 8 ;

no rows selected

SQL> SELECT file_id, 
2 segment_name, 
3 segment_type 
4 FROM dba_extents 
5 WHERE owner = 'KERRY';

FILE_ID SEGMENT_NAME SEGMENT_TYPE
---------- -------------------------------- ------------------
7 TEST TABLE
7 TEST TABLE

SQL> 

SQL> SELECT FILE_ID, 
2 BLOCK_ID, 
3 BLOCKS 
FROM DBA_EXTENTS 
4 5 WHERE OWNER ='&OWNER'
6 AND SEGMENT_NAME = '&TABLE_NAME'; 
Enter value for owner: KERRY
old 5: WHERE OWNER ='&OWNER'
new 5: WHERE OWNER ='KERRY'
Enter value for table_name: IX_TEST
old 6: AND SEGMENT_NAME = '&TABLE_NAME'
new 6: AND SEGMENT_NAME = 'IX_TEST'

FILE_ID BLOCK_ID BLOCKS
---------- ---------- ----------
8 144 8
8 152 8

SQL> SELECT HEADER_FILE
2 , HEADER_BLOCK
3 , BYTES
4 , BLOCKS
5 , EXTENTS 
FROM DBA_SEGMENTS 
6 7 WHERE OWNER='&OWNER' AND SEGMENT_NAME='&SEGMENT_NAME';
Enter value for owner: KERRY
Enter value for segment_name: IX_TEST
old 7: WHERE OWNER='&OWNER' AND SEGMENT_NAME='&SEGMENT_NAME'
new 7: WHERE OWNER='KERRY' AND SEGMENT_NAME='IX_TEST'

HEADER_FILE HEADER_BLOCK BYTES BLOCKS EXTENTS
----------- ------------ ---------- ---------- ----------
8 146 131072 16 2

SQL> 

RMAN> recover datafile 8 block 148 clear;