Sys-Admin Information's » Oracle

Troubleshooting for startup inconsistent DB

Hilman-Lupus — Tue, 27 May 2008 03:14:36 +0000

for e.g. database unable up cause of datafile corruption

SQL> startup
ORACLE instance started.
 
Total System Global Area 1610612736 bytes
Fixed Size                  2177912 bytes
Variable Size             396149896 bytes
DATABASE Buffers         1207959552 bytes
Redo Buffers                4325376 bytes
DATABASE mounted.
ORA-01113: file 2 needs media recovery
ORA-01110: DATA file 2: '/oradata/oracle/ts/undotbs01.

commonly the database unable be startup if UNDO or SYSTEM table space need recovery, if these happen we need correct temporary workaround to handle this, all workaround for each tablespace datafile is similar

do the recovery

SQL> recover DATABASE;
ORA-00279: CHANGE 7516226638 generated at 05/05/2008 12:32:11
needed FOR thread 1
ORA-00289: suggestion : /oradata/oracle/ts/arc/1_42_653916655.dbf
ORA-00280: CHANGE 7516226638 FOR thread 1 IS IN sequence #42
 
Specify log: {ret=suggested | filename | AUTO | CANCEL}
AUTO
ORA-00308: cannot open archived log
‘/oradata/oracle/ts/arc/1_42_653916655.dbf’
ORA-27037: unable TO obtain file STATUS
SVR4 Error: 2: No such file OR directory
Additional information: 3

Open database

SQL> ALTER DATABASE open;
ALTER DATABASE open
*
ERROR at line 1:
ORA-01113: file 2 needs media recovery
ORA-01110: DATA file 2: '/oradata/oracle/ts/undotbs01.dbf'

this condition force us to append archivelog or logfile consist appropriate sequence, if there not available... database unable up till to ever

but we have a temporary solution, below :

Edit Init file
Remark parameter undo_management dan undo_tablespace
add this parameter :
UNDO_MANAGEMENT=MANUAL _ALLOW_RESETLOGS_CORRUPTION = TRUE _ALLOW_ERROR_SIMULATION = TRUE _CORRUPTED_ROLLBACK_SEGMENTS =(_SYSSMU1,_SYSSMU2,_SYSSMU3, ...)
get value _CORRUPTED_ROLLBACK_SEGMENTS from [OS] the command cd system_datafile_directory strings system01.dbf | grep _SYSSMU | cut -d $ -f 1 | sort -u

shutdown database , and turn on with that initfile already edited. Pfile must be wrote in startup command .

SQL> startup mount
pfile='/data1/oracle/product/10.2.0/dbs/initts.ora';
ORACLE instance started.
Total System Global Area 1610612736 bytes
Fixed Size                  2177912 bytes
Variable Size             396149896 bytes
DATABASE Buffers         1207959552 bytes
Redo Buffers                4325376 bytes
DATABASE mounted.

Recover database until cancel

SQL> recover DATABASE until cancel;
ORA-00279: CHANGE 7516226638 generated at 05/05/2008 12:32:11
needed FOR thread 1
ORA-00289: suggestion :
/oradata/oracle/ts/arc/1_42_653916655.dbf
ORA-00280: CHANGE 7516226638 FOR thread 1 IS IN sequence #42
Specify log: {ret=suggested | filename | AUTO | CANCEL}
CANCEL
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery TO be consistent
ORA-01110: DATA file 1: ‘/oradata/oracle/ts/system01.dbf’
ORA-01112: media recovery NOT started

Open database

SQL> ALTER DATABASE OPEN RESETLOGS;
DATABASE altered.

after the database up, backup important data using exp/imp

Backup Listener log

Hendrawan — Sun, 09 Mar 2008 05:40:48 +0000

In database production, the log of listener was grow rapidly, some times if you move the "listener.log" while the listener is up and running, listener will stop writing to log file after you move/delete the "listener.log", it won't create new log file.
The listener log status will be 'off', You need to start the "listener log" again manually. For this reason you must do this procedure.

bash> lsnrctl stat

LSNRCTL for Solaris: Version 9.2.0.6.0 - Production on 09-MAR-2008 12:43:22
 
Copyright (c) 1991, 2002, Oracle Corporation.  All rights reserved.
 
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Solaris: Version 9.2.0.6.0 - Production
Start Date                11-SEP-2007 03:34:17
Uptime                    180 days 9 hr. 9 min. 4 sec
Trace Level               off
Security                  OFF
SNMP                      OFF
Listener Parameter File   /oracle/app/product/9.2.0/network/admin/listener.ora
Listener Log File         /oracle/app/product/9.2.0/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=HOSTNAME)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "DB_SID.domain.com" has 2 instance(s).
Instance "DB_SID", status UNKNOWN, has 1 handler(s) for this service...
Instance "DB_SID", status READY, has 1 handler(s) for this service...
The command completed successfully

bash> lsnrctl

LSNRCTL> SET log_status off
Connecting TO (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
LISTENER parameter "log_status" SET TO OFF
The command completed successfully

bash> mv /oracle/app/product/9.2.0/network/log/listener.log /backup/listener.log_9-March-2008

LSNRCTL> set log_status on
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
LISTENER parameter "log_status" set to ON
The command completed successfully

Oracle Heterogeneous Configuration Service (ORACLE to MySQL)

Henri Simatupang — Wed, 05 Mar 2008 06:55:36 +0000

PART I : Setting up ODBC driver

1. Install mysql-connector-odbc-3.51.12-linux-i686.rpm

bash> rpm –ivh mysql-connector-odbc-3.51.12-linux-i686.rpm

2. Start Mysql Daemon

bash> /etc/init.d/mysqld start
Initializing MySQL database:                               [  OK  ]

3. Configure ODBC

bash> ODBCConfig

4. Modify : /etc/odbc.ini

bash> vi /etc/odbc.ini

[trans]
Driver = MySQL ODBC 3.51 Driver
DATABASE = kampus
DESCRIPTION = punya_kampus
PWD = password
PORT = 3306
SERVER = localhost
UID = root

5. Test Connection

isql DSN [UID [PWD]] [options]

bash> isql -v trans root password

+---------------------------------------+
| Connected!
|
| sql-statement
| help [tablename]
| quit
|
+---------------------------------------+

PART II : How 2 Configure HSODBC

1. Listener

# listener.ora Network Configuration File: /u01/app/oracle/product/10.2.0/network/admin/listener.ora
# Generated by Oracle configuration tools.
 
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = trans)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0)
(PROGRAM = hsodbc)
)
)
 
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = OraHost)(PORT = 1521))
)
)

bash&gt; lsnrctl reload

bash&gt; lsnrctl status
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 12-NOV-2006 22:50:28
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                12-NOV-2006 22:42:34
Uptime                    0 days 0 hr. 7 min. 54 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/10.2.0/network/admin/listener.ora
Listener Log File         /u01/app/oracle/product/10.2.0/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=OraHost)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "prod" has 1 instance(s).
Instance "prod", status READY, has 1 handler(s) for this service...
Service "prodXDB" has 1 instance(s).
Instance "prod", status READY, has 1 handler(s) for this service...
Service "prod_XPT" has 1 instance(s).
Instance "prod", status READY, has 1 handler(s) for this service...
Service "trans" has 1 instance(s).
Instance "trans", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

2. Edit tnsnames.ora

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/10.2.0/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
 
PROD =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = OraHost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = prod)
)
)
 
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
 
trans =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = OraHost)(PORT = 1521))
)
(CONNECT_DATA =
(SID = trans))
(HS = OK)
)

3. Configure $ORACLE_HOME/hs/admin/inithsodbc.ora
# This is a sample agent init file that contains the HS parameters that are
# needed for an ODBC Agent.
# HS init parameters
#
HS_FDS_CONNECT_INFO = trans
HS_FDS_TRACE_LEVEL = off
HS_FDS_SHAREABLE_NAME = /usr/lib/libmyodbc3.so
#
# ODBC specific environment variables
#set ODBCINI=/etc/odbc.ini
#
# Environment variables required for the non-Oracle system
#
# set =
#

4. Configure Environment & Test tnsping

bash> vi .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi

# User specific environment and startup programs
PATH=$PATH:$HOME/bin
# Henri Configure
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/10.2.0
export ORACLE_SID=prod
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/usr/lib
export PATH=$PATH:$ORACLE_HOME/bin:/sbin:.
export TNS_ADMIN=$ORACLE_HOME/network/admin
export ODBCINI=/etc/odbc.ini

bash> tnsping trans
TNS Ping Utility for Linux: Version 10.2.0.1.0 - Production on 12-NOV-2006 23:21:43
Copyright (c) 1997, 2005, Oracle.  All rights reserved.
Used parameter files:
/u01/app/oracle/product/10.2.0/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = OraHost)(PORT = 1521))) (CONNECT_DATA = (SID = trans)) (HS = OK))
OK (10 msec)

5. Creating Database Link

SQL> conn kadal/kadal
Connected.

SQL> CREATE DATABASE LINK trans CONNECT TO "root" IDENTIFIED BY "password" USING 'trans';
Database link created.

6. Test Koneksi

SQL> SELECT * FROM MHS@TRANS;

Note : Case Sensitive

Show Locking Proccess

Eriek Regandono — Mon, 21 Jan 2008 06:36:06 +0000

SQL> SELECT s1.username || '@' || s1.machine|| ' ( SID=' || s1.sid || ' )  is blocking '|| s2.username || '@' || s2.machine || ' ( SID=' || s2.sid || ' ) ' AS blocking_status, s1.SQL_ID
FROM v$lock l1, v$session s1, v$lock l2, v$session s2
WHERE s1.sid=l1.sid AND s2.sid=l2.sid
AND l1.BLOCK=1 AND l2.request > 0
AND l1.id1 = l2.id1
AND l2.id2 = l2.id2;

Moving & Recreate Temp Tablespace

Hendrawan — Wed, 12 Dec 2007 17:05:18 +0000

I Recreate the temp tablespace coz my temp tablespace was corrupt,
you can do to the following bellow

create temporary tablespace temp2 tempfile '/rdbms/temp01/temp2.dbf' size 10M extent management local uniform size 1M;
alter database default temporary tablespace temp2;
drop tablespace temp including contents and datafiles;

now change back to temp again with following step bellow:

create temporary tablespace temp tempfile '/rdbms/temp01/temp2_01.dbf' size 1024M extent management local uniform size 1M;
alter database default temporary tablespace temp;
drop tablespace temp2 including contents and datafiles;
alter tablespace temp add tempfile '/rdbms/temp01/temp2_02.dbf' size 1024M;

ORA 29807 - specified operator does not exist

Hendrawan — Sat, 08 Dec 2007 07:27:48 +0000

Yesterday,
During Installation of Oracle database 9i base on RHEL 4 ES,
I got Found error occurred when create the database using dbca,
and it keeps failing at the same point (Creating data dictionary Views)
This the error number Detail "ORA 29807 - specified operator does not exist"

Workaround;
just ignore the error and DBCA proceeds normally. Once the database is ready,
login as SYS and run this script manually:

$ORACLE_HOME/rdbms/admin/prvtxml.plb
SQL> @?/rdbms/admin/prvtxml.plb

kill sesion oracle in windows

Eriek Regandono — Thu, 15 Nov 2007 11:39:46 +0000

path: .../Oracle Home/bin/orakill.exe or find manually
command: orakill
example: C:\Oracle9\bin\orakill ORCL 2760

Sql*Loader

Hendrawan — Wed, 17 Oct 2007 13:08:47 +0000

Preview a little 'bout sql*loader
SQL*Loader loads data from external files into tables of an Oracle database,
SQL*Loader Can manipulate the data before loading it, using SQL functions,
SQL*Loader Can load data into multiple tables during the same load session, and many more..

SQL*Loader takes as input a control file (*.ctl), which controls the behavior of SQL*Loader, and one or more datafiles. Output of the SQL*Loader is an Oracle database (where the data is loaded), a log file, a bad file, and potentially a discard file.

Requirement..
1. Table
2. Control File
3. Flat File / Data File (optional)

Example

1. ---Create User

CREATE user loader
IDENTIFIED BY loader
DEFAULT tablespace loaders
TEMPORARY tablespace temp

---Grant To Tablespace

GRANT UNLIMITED TABLESPACE TO loader

---Making A Table

CREATE TABLE loader.load_here
(
col1 VARCH4R2(10),
col2 VARCH4R2(10),
col3 VARCH4R2(10)
)

2. Add "ctl" file

bash> vi loader.ctl
LOAD DATA
INFILE '/tmp/flat_file.csv'
REPLACE
INTO TABLE loader.load_here
FIELDS TERMINATED BY ','
TRAILING NULLCOLS
(col1,col2,col3)

The INFILE says, "where file was load"
The REPLACE keyword says, "remove any existing rows before starting the load."
INTO TABLE, "yes, the table where data was insert"
The TRAILING NULLCOLS statement handles the missing data; it tells SQL*Loader to load any missing data as NULL values
FIELDS TERMINATED BY ',' says the delimiter from csv file, default is " , "

3. Insert the table with csv file

a,nama1,staff
b,nama2,manager
c,nama3,direktur

Run SQL*Loader

bash> cd /tmp

bash> ls
loader.ctl
flat_file.csv

bash> sqlldr userid=loader/loader control=/tmp/loader.ctl log=/tmp/loader.log