Tags: OracleORA-01578 is a block of physical bad blocks/corruption, different from the logical corruption/bad block, usually accompanied by ORA-1110 appear, once Oracle read to the existence of a corrupted block will be reported caused By:java.sql.SQLException: Ora-01578:oracle Data Block Corruption (file number 4, block number 840339)ORA-01110: Data
I. Problem Description
OS: RedHat 5.8
Database: 11.2.0.3
2 node RAC.
When using RMAN for backup, the following error is reported:
ORA-00245: control file backup failed; target is likely on a local file system
This issue only exists in RAC environments after Oracle 11gr2.
2. ORA-245 trigger conditions
ORA-00245 errors may occur in five of the following environme
In oracle, the content of each control file is the same. A control file records the physical structure of the entire database. It contains the following information: 1. database Name 2. file Name and path of the data file and redo log fi
Label:Java reads the Oracle database BLOB field data file and saves it to a local file ****** Package com.bo.test;
Import Java.io.FileOutputStream;
Import Java.io.InputStream;
Import java.sql.Connection;
Import Java.sql.DriverManager;
Import Java.sql.ResultSet;
Import java.sql.SQLException;
Import java.sql.Statement; /** * Example Description: * Java reads the
Ora-01110:data file 6: '/TEST/LUNAR_TEST01.DBF ' ora-27041:unable to open file linux-x86_64 error:2: No such file or directory Additional Information:3
Check the SPID of the DBWR process
sql>!ps-ef|grep dBW Oracle 2757 1 0 12:29? 00:00:14 ora_dbw0_bb Oracle
Oracle 11g audit file and oracle11g audit file
Audit:
The audit option enabled by default for 11g. The default value of the AUDIT_TRAIL parameter is DB, which indicates that audit data will be recorded in the base table of the audit dictionary in the database. In Oracle 10 Gb, the default value of this parameter is non
A friend and I talked to a case, a tablespace originally had a data file (already has a lot of data entered), then he added 7 data files, this time he found that he added more files, want to delete these data files, but do not understand the database, directly offline the table space, and then rm the relevant data files, The last table space cannot be online. I have simulated the recovery test for the scene, restoring it using bbed and Dul
Simulation
channel CH1 type disk;Allocate channel CH2 type disk;Backup incremental Level 0 database plus Archivelog Delete inputFormat '/home/oracle/rmanback/db_%d_%u 'Tag=db_inc_0;Release channel CH1;Release channel CH2;}Finished backup at 12-MAY-17I. Recovering PDB data filesWhen the database is open, all data files for the current data are checked.For System,sysaux and undo table space data files, if there is a problem, the database cannot open. If a common
Dmp File Import and Export Steps
-- The path of the datafile is provided at will, but the subsequent file name is dbf
LOGGING
DATAFILE 'd: \ OracleDateFile \ DTBS. dbf'
SIZE 32 M
AUTOEXTEND ON
NEXT 32 m maxsize 2048 M
Extent management local;
-- Create a user and specify a tablespace
Create user test identified by "123456" default tablespace DTBS;
Grant connect, resource, dba to test;
The jdk file downloaded from the oracle official website in Linux is not a standard gzip file.The escape or tar. xz format cannot be avoided because someone may accidentally change the name after compression. Bytes. You can run the file command to check and confirm this. Therefore, there is no way to decompress the package.
Solution:
Download the
user:1) Modify the user's shell restrictions, modify the/etc/security/limits.conf file, enter the command: vi/etc/security/limits.conf, press the I key to enter the editing mode, add the following content to the file
Oracle Soft Nproc 2047Oracle Hard Nproc 16384Oracle Soft Nofile 1024Oracle Hard Nofile 65536
Press ESC when editing is c
One of the tablespace is read-only in your database. The Los S of allControl file forced you to recreate the control file. Which operation doYou need to perform after re-creating the control file and opening theDatabase?A. Drop and re-create the read-only tablespacesB. Rename the read-only data file to their correct
. After restoring and loading the control file, you will have the backup information required to restore and restore the database.After restoring the control file of the database from the backup, you must perform full media recovery before you can use the resetlogs option to open the database.
[Oracle @ yysf 2009_09_30] $ RMAN target/
Recovery Manager: Release
The password file of Oracle is located in the $ ORACLE_HOME/DBS directory. The naming rule is orapw
Before the database is started, the database's built-in users cannot use the database to authenticate their identities. The password file stores the username and password of sysdba/sysoper users. Users can use the password fil
Despite repeated caution, there is a human error deleting the database file. Simple steps, perhaps the key moment can be a big help.Environment: CENTOS 6.5Analog error Operation: The database is in normal operation, the manual direct RM dropped the data file. --1. Test environment Situation: $ Cat/etc/redhat-releasecentos Release 6.5 (Final) select file_name from dba_data_files;/u01/app/
Oracle Author: Anonymous Source: InterNet Add Time: 2003-7-20 system Environment: 1, operating system: Windows 2000
2. Database: Oracle 8i R2 (8.1.6) for NT Enterprise Edition
3, Installation path: C:\ORACLE
Explain:
Oracle 8i R2 (8.1.6) for NT Enterprise Edition The default installation will create the following three
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