CentOS Installation Oracle 11g R2Lab Environment:Linux server operating system: CentOS 5.5 32-bit (note: Please separate partition/data for installation of Oracle database during system installation)Linux Server IP Address: 192.168.32.130Oracle Database version: Linux_11gr2_databaseWindows Client system: Windows XpSpec
can be fixed, you may need to re-build the DG or Apply the new Standby, and then switch back to the Primary role. Failover may cause data loss due to the fault type of the Primary site.There are many tools for Switchover and Failover. The most common tools are SQL Command, Data Guard Broker, and DB Grid Control. This article describes how to use SQL Command to perform Switchover operations.
References:
Imp
is the DSS application. This feature is widely used, so every time a new version is released, the feature will be continuously improved.
The following table lists the partition functions that are constantly improved with version updates (advanced ):
Oracle Database Version
Partition Function
8.0.5
Introduction of range partitioning
8i
The function of partitioning by scattered columns and combining range hash parti
Tags: style blog http io using ar strong file data1. Select the database used by biAs a bi system, the use of a powerful background database software is essential. There are many database products with high performance and stability, such as IBM DB2, Oracle, GP and so on. These databases are commonly used in everyday enterprise-level BI systems. In terms of my personal work experience and the company's recommended use of databases,
1. OverviewThe Oracle EM11g database needs to be migrated. The main steps are as follows:
1. Disable OMS
2. Back up the current database and restore it to the new server.
3. Update OracleEM OMS database connection Configuration
4. Start OMS
This operation method is also valid in Oracle EM 12c.
2. ProcedureStep 1: Disable OMS
Find the emctl tool in the bin where OMS is located and disable the OMS service.
/U
After installing the OEM grid control 11g, reinstall the agent on a monitoring server and the agent will not be able to work. The error "EMD upload error: uploadXMLFiles skipped" will be reported during the emctl upload check ". As follows:
[Oracle @ codb2 ~] $ Emctl upload
Oracle Enterprise Manager 11g Release 1 Grid
Lab environment: Oracle 11g R2 RAC (11.2.0.3.5) Oracle Enterprise Linux 5.6x86
1. Create an ASM disk group and mount the disk on two nodes. Then, partition the disk on the first node. [root @ Rac1 ~] # Fdisk-ldisk/dev/SDE: 2147 MB, 2147483648 bytes255 heads, 63 sectors/track, 261 cylindersunits = cylinders of 16065*512 = 8225280 bytes
Device boot start end blocks
Install Oracle 11G Release 2 (11.2) on Centos Linux 7This article presents what to install the Oracle 11G on Centos Linux 7.read following article How to install CentOS Linux 7:install CentOS Linux 7
(for comfort set 2G memory for your vsan before proceeding with Oracle
option DECLINE_SECURITY_UPDATES = true. The default value is false. Change it to true.$./RunInstaller-silent-force-ignorePrereq-ignoreSysPrereqs-responseFile/data/database/response/db_install.rspStarting Oracle Universal Installer...
Check temporary space: it must be greater than 120 MB. Actually 8122 MB passedCheck swap space: it must be greater than 150 MB. Actually 255999 MB passedPrepare to start
I. Problem Description
Install RAC of 11.2.0.1 on Oracle Linux 6.1 and run the root. Sh script when installing grid. The error is as follows:
[Root @ Rac1 bin] #/u01/APP/11.2.0/GRID/root. Sh
Running Oracle 11g root. Sh script...
The following environment variables are Setas:
Oracle_owner = Oracle
ORACLE_HOME =/u01/AP
The mongoel DG technology uses redo log transmission and application to ensure consistent data on the standby end and the primary end. In this process, Redo Transport and Redo Apply are two core actions. Redo Transport transmits the Redo Log information to the Standby end and waits for the Apply operation. Redo Apply is to execute these log applications and change the Standby data to achieve consistency.
Th
table space, Oracle will use the system fallback segment for the scatter store. If you do not specify this parameter when you create the database, and you select AUM (Automatic unod Management), Oracle creates a default tablespace named Undotbs, which has a 10MB data file that is automatically expanded. There is no maximum limit.such as: Undo_tablespace=undotbsL
As we all know, it is not easy to migrate a database from a higher version of Oracle to a lower version of oracle. If you directly use the SQL developer tool, you may not be able to complete the migration successfully (errors may occur more or less in the middle ).
Exp and IMP are applicable to Oracle data copy and bac
"-------------------------------------------------------------------------------Begin DBMS_SQLTUNE.drop_tuning_task (task_name => 'ft8s1pfmz9ph0d _ AWR_tuning_task '); end;What is the difference between Oracle 11g and 10g?
Introduction to new features of ORACLE 11gOracle 11g has now started beta testing. Like other pro
When Oracle 11g is exported using EXP, empty tables cannot be exported, and 11 gexp
I. cause:There is a new feature in 11G. When the table has no data, no segment is allocated to save space.1. insert a row and then roll back to generate a segment.This method inserts data int
environment variable of the operating system. It is used to correspond to the database instance name. The operating system needs to obtain the Instance name (instance_name, which is a database parameter) the system environment variable oracle_sid must be operated. oracle_sid and instance_name must be the same; otherwise, an error is reported (on unix platforms, it is "ORACLE not available", and on winnt platforms, it is "TNS: protocol adapter error "
full number, such as: 123456, just a more "confirm" step, such as. ***###
The Prerequisite Check dialog box appears, select Ignore All, and then click Next to continue.Some machines do not appear on this screen, can be ignored directly.
Then click "Finish" to start the installation. The next step is the "Install Product" interface ...
When the above progress reaches 100%, a line dialog will appear, please be patient and wait for it to complete. Then click "OK" to pop up the confirmatio
check all, whether to install sample schemas, it is recommended to check the settings of 8, memory and character set, adjust as needed 9, click Next, adjust the database files as needed, control the file and log file location 10, click Finish to start creating the database 11, after the successful creation will give the relevant information, such as data name, spfile location, OEM path port number and so on. 12, validation results [[emailprotec
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