Oracle 9i clob segment possible corruption

Hello all,
We are experiencing some select issues from a table containing a CLOB segment. Since I don't know too much about CLOBs and we are suspecting a possible corruption. What would be the next step besides a DBV on the datafile housing hat table?
I have read that there is a package called DBMS_LOB ... but not sure how to use
Much appreciated

Corruption? logical or physical?
SQL> desc dbms_lob
PROCEDURE APPEND
Argument Name               Type               In/Out Default?
DEST_LOB               BLOB               IN/OUT
SRC_LOB               BLOB               IN
PROCEDURE APPEND
Argument Name               Type               In/Out Default?
DEST_LOB               CLOB               IN/OUT
SRC_LOB               CLOB               IN
PROCEDURE CLOSE
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
PROCEDURE CLOSE
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
PROCEDURE CLOSE
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN/OUT
FUNCTION COMPARE RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_1                    BLOB               IN
LOB_2                    BLOB               IN
AMOUNT                NUMBER(38)          IN     DEFAULT
OFFSET_1               NUMBER(38)          IN     DEFAULT
OFFSET_2               NUMBER(38)          IN     DEFAULT
FUNCTION COMPARE RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_1                    CLOB               IN
LOB_2                    CLOB               IN
AMOUNT                NUMBER(38)          IN     DEFAULT
OFFSET_1               NUMBER(38)          IN     DEFAULT
OFFSET_2               NUMBER(38)          IN     DEFAULT
FUNCTION COMPARE RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
FILE_1                BINARY FILE LOB      IN
FILE_2                BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN
OFFSET_1               NUMBER(38)          IN     DEFAULT
OFFSET_2               NUMBER(38)          IN     DEFAULT
PROCEDURE CONVERTTOBLOB
Argument Name               Type               In/Out Default?
DEST_LOB               BLOB               IN/OUT
SRC_CLOB               CLOB               IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN/OUT
SRC_OFFSET               NUMBER(38)          IN/OUT
BLOB_CSID               NUMBER               IN
LANG_CONTEXT               NUMBER(38)          IN/OUT
WARNING               NUMBER(38)          OUT
PROCEDURE CONVERTTOCLOB
Argument Name               Type               In/Out Default?
DEST_LOB               CLOB               IN/OUT
SRC_BLOB               BLOB               IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN/OUT
SRC_OFFSET               NUMBER(38)          IN/OUT
BLOB_CSID               NUMBER               IN
LANG_CONTEXT               NUMBER(38)          IN/OUT
WARNING               NUMBER(38)          OUT
PROCEDURE COPY
Argument Name               Type               In/Out Default?
DEST_LOB               BLOB               IN/OUT
SRC_LOB               BLOB               IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN     DEFAULT
SRC_OFFSET               NUMBER(38)          IN     DEFAULT
PROCEDURE COPY
Argument Name               Type               In/Out Default?
DEST_LOB               CLOB               IN/OUT
SRC_LOB               CLOB               IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN     DEFAULT
SRC_OFFSET               NUMBER(38)          IN     DEFAULT
PROCEDURE CREATETEMPORARY
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
CACHE                    BOOLEAN           IN
DUR                    BINARY_INTEGER          IN     DEFAULT
PROCEDURE CREATETEMPORARY
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
CACHE                    BOOLEAN           IN
DUR                    BINARY_INTEGER          IN     DEFAULT
PROCEDURE ERASE
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
AMOUNT                NUMBER(38)          IN/OUT
OFFSET                NUMBER(38)          IN     DEFAULT
PROCEDURE ERASE
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
AMOUNT                NUMBER(38)          IN/OUT
OFFSET                NUMBER(38)          IN     DEFAULT
PROCEDURE FILECLOSE
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN/OUT
PROCEDURE FILECLOSEALL
FUNCTION FILEEXISTS RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
PROCEDURE FILEGETNAME
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
DIR_ALIAS               VARCHAR2          OUT
FILENAME               VARCHAR2          OUT
FUNCTION FILEISOPEN RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
PROCEDURE FILEOPEN
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN/OUT
OPEN_MODE               BINARY_INTEGER          IN     DEFAULT
PROCEDURE FREETEMPORARY
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
PROCEDURE FREETEMPORARY
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
FUNCTION GETCHUNKSIZE RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
FUNCTION GETCHUNKSIZE RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
FUNCTION GETLENGTH RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
FUNCTION GETLENGTH RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
FUNCTION GETLENGTH RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
FUNCTION GET_STORAGE_LIMIT RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
FUNCTION GET_STORAGE_LIMIT RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
FUNCTION INSTR RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
PATTERN               RAW               IN
OFFSET                NUMBER(38)          IN     DEFAULT
NTH                    NUMBER(38)          IN     DEFAULT
FUNCTION INSTR RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
PATTERN               VARCHAR2          IN
OFFSET                NUMBER(38)          IN     DEFAULT
NTH                    NUMBER(38)          IN     DEFAULT
FUNCTION INSTR RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
PATTERN               RAW               IN
OFFSET                NUMBER(38)          IN     DEFAULT
NTH                    NUMBER(38)          IN     DEFAULT
FUNCTION ISOPEN RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
FUNCTION ISOPEN RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
FUNCTION ISOPEN RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
FUNCTION ISTEMPORARY RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
FUNCTION ISTEMPORARY RETURNS NUMBER(38)
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
PROCEDURE LOADBLOBFROMFILE
Argument Name               Type               In/Out Default?
DEST_LOB               BLOB               IN/OUT
SRC_BFILE               BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN/OUT
SRC_OFFSET               NUMBER(38)          IN/OUT
PROCEDURE LOADCLOBFROMFILE
Argument Name               Type               In/Out Default?
DEST_LOB               CLOB               IN/OUT
SRC_BFILE               BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN/OUT
SRC_OFFSET               NUMBER(38)          IN/OUT
BFILE_CSID               NUMBER               IN
LANG_CONTEXT               NUMBER(38)          IN/OUT
WARNING               NUMBER(38)          OUT
PROCEDURE LOADFROMFILE
Argument Name               Type               In/Out Default?
DEST_LOB               BLOB               IN/OUT
SRC_LOB               BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN     DEFAULT
SRC_OFFSET               NUMBER(38)          IN     DEFAULT
PROCEDURE LOADFROMFILE
Argument Name               Type               In/Out Default?
DEST_LOB               CLOB               IN/OUT
SRC_LOB               BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN
DEST_OFFSET               NUMBER(38)          IN     DEFAULT
SRC_OFFSET               NUMBER(38)          IN     DEFAULT
PROCEDURE OPEN
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
OPEN_MODE               BINARY_INTEGER          IN
PROCEDURE OPEN
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
OPEN_MODE               BINARY_INTEGER          IN
PROCEDURE OPEN
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN/OUT
OPEN_MODE               BINARY_INTEGER          IN     DEFAULT
PROCEDURE READ
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
AMOUNT                NUMBER(38)          IN/OUT
OFFSET                NUMBER(38)          IN
BUFFER                RAW               OUT
PROCEDURE READ
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
AMOUNT                NUMBER(38)          IN/OUT
OFFSET                NUMBER(38)          IN
BUFFER                VARCHAR2          OUT
PROCEDURE READ
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN/OUT
OFFSET                NUMBER(38)          IN
BUFFER                RAW               OUT
FUNCTION SUBSTR RETURNS RAW
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN
AMOUNT                NUMBER(38)          IN     DEFAULT
OFFSET                NUMBER(38)          IN     DEFAULT
FUNCTION SUBSTR RETURNS VARCHAR2
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN
AMOUNT                NUMBER(38)          IN     DEFAULT
OFFSET                NUMBER(38)          IN     DEFAULT
FUNCTION SUBSTR RETURNS RAW
Argument Name               Type               In/Out Default?
FILE_LOC               BINARY FILE LOB      IN
AMOUNT                NUMBER(38)          IN     DEFAULT
OFFSET                NUMBER(38)          IN     DEFAULT
PROCEDURE TRIM
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
NEWLEN                NUMBER(38)          IN
PROCEDURE TRIM
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
NEWLEN                NUMBER(38)          IN
PROCEDURE WRITE
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
AMOUNT                NUMBER(38)          IN
OFFSET                NUMBER(38)          IN
BUFFER                RAW               IN
PROCEDURE WRITE
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
AMOUNT                NUMBER(38)          IN
OFFSET                NUMBER(38)          IN
BUFFER                VARCHAR2          IN
PROCEDURE WRITEAPPEND
Argument Name               Type               In/Out Default?
LOB_LOC               BLOB               IN/OUT
AMOUNT                NUMBER(38)          IN
BUFFER                RAW               IN
PROCEDURE WRITEAPPEND
Argument Name               Type               In/Out Default?
LOB_LOC               CLOB               IN/OUT
AMOUNT                NUMBER(38)          IN
BUFFER                VARCHAR2          IN
SQL>

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pkgsToInstallNotUpdate[comment]=A list of provides names or package names of packages to install not update
pkgsToInstallNotUpdate=kernel;kernel-modules;kernel-devel;
adminAddress[comment]=List of e-mail addresses for update agent to communicate with when run in batch mode
adminAddress=root@localhost;
storageDir[comment]=Where to store packages and other data when they are retrieved
storageDir=/var/spool/up2date
fileSkipList[comment]=A list of file names, optionally including wildcards, to skip
fileSkipList=;
removeSkipList[comment]=A list of package names, optionally including wildcards that up2date will not remove
removeSkipList=kernel*;
enableProxy[comment]=Use a HTTP Proxy
enableProxy=0
retrieveSource[comment]=Retrieve source RPM along with binary package
retrieveSource=0
versionOverride[comment]=Override the automatically determined system version
versionOverride=
httpProxy[comment]=HTTP proxy in host:port format, e.g. squid.redhat.com:3128
httpProxy=
useGPG[comment]=Use GPG to verify package integrity
useGPG=1
gpgKeyRing[comment]=The location of the gpg keyring to use for package checking
gpgKeyRing=/etc/sysconfig/rhn/up2date-keyring.gpg
noBootLoader[comment]=To disable modification of the boot loader (lilo, silo, etc)
noBootLoader=0
noReboot[comment]=Disable the reboot actions
noReboot=0
networkRetries[comment]=Number of attempts to make at network connections before giving up
networkRetries=5
updateUp2date[comment]=Allow up2date to update itself when possible
updateUp2date=1
disallowConfChanges[comment]=Config options that can not be overwritten by a config update action
disallowConfChanges=noReboot;sslCACert;useNoSSLForPackages;noSSLServerURL;serverURL;disallowConfChanges;
sslCACert[comment]=The CA cert used to verify the ssl server
sslCACert=/usr/share/rhn/ULN-CA-CERT
[root@tstdb01 up2date]# *up2date --show-channels*el5_x86_64_latest

Oracle 9i System file get corrupted. How to remove the corruption.

Hello,
I am facing problem during backup of oracle database (Oracle 9i, 32 bit windows). Pls see the following error messages.
Sep 16 10:48:41 mnmccbr.mci.sc: * mnmcfs.mci.sc:E:\SC\SC12.1\Databases\Oracleconfig\oraBackupNM45 ORA-19566:
exceeded limit of 0 corrupt blocks for file E:\SC\SC12.1\DATABASES\ORACLECONFIG\SYS1NM45.ORA
Output of dbverify.
DBVERIFY: Release 9.2.0.6.0 - Production on Sat Oct 11 09:40:42 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
DBVERIFY - Verification starting : FILE = E:\SC\SC12.1\DATABASES\ORACLECONFIG\SYS1NM45.ORA
Page 28093 is marked corrupt ***
Corrupt block relative dba: 0x00406dbd (file 1, block 28093)
Bad check value found during dbv:
Data in bad block -
type: 6 format: 2 rdba: 0x00406dbd
last change scn: 0x0000.09abd22e seq: 0x2 flg: 0x06
consistency value in tail: 0xd22e0602
check value in block header: 0x8b91, computed block checksum: 0x800
spare1: 0x0, spare2: 0x0, spare3: 0x0
DBVERIFY - Verification complete
Total Pages Examined : 31616
Total Pages Processed (Data) : 21138
Total Pages Failing (Data) : 0
Total Pages Processed (Index): 7246
Total Pages Failing (Index): 0
Total Pages Processed (Other): 1451
Total Pages Processed (Seg) : 0
Total Pages Failing (Seg) : 0
Total Pages Empty : 1780
Total Pages Marked Corrupt : 1
Total Pages Influx : 0
Highest block SCN : 224578617 (0.224578617)
The Backup is enabled in our machine but we are not able to take backup since we we get the error (6 Sept). I am not sure whether archive log are available since 6th Sept. Even oracle is working fine but backup is not possible.
Pls note that this is customer testbed. Any idea to remove the corruption from the system file.
Thanks
With Regards
Hemant Joshi

Hello All,
I tried the resize procedure but the corruption doesn't cleared.
SQL> ALTER DATABASE DATAFILE 'E:\SC\SC12.1\DATABASES\ORACLECONFIG\SYS1NM45.ORA' RESIZE 246 M;
Database altered.
SQL> ALTER DATABASE DATAFILE 'E:\SC\SC12.1\DATABASES\ORACLECONFIG\SYS1NM45.ORA' RESIZE 245 M;
Database altered.
SQL> ALTER DATABASE DATAFILE 'E:\SC\SC12.1\DATABASES\ORACLECONFIG\SYS1NM45.ORA' RESIZE 244 M;
ALTER DATABASE DATAFILE 'E:\SC\SC12.1\DATABASES\ORACLECONFIG\SYS1NM45.ORA' RESIZE 244 M
ERROR at line 1: ORA-03297: file contains used data beyond requested RESIZE value
SQL> ALTER DATABASE DATAFILE 'E:\SC\SC12.1\DATABAES\ORACLECONFIG\SYS1NM45.ORA' RESIZE 400 M;
Database altered.
Can you please let me know how to recover corrupted Block or how to recover the corrupted file only.
Thanks
With Regards
Hemant Joshi.

Oracle 9i clob segment possible corruption

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