oracle 11g tuning

This article mainly introduces the installation of Oracle 11g RAC and the creation and migration of 10g databases in the 11g RAC environment, and how to upgrade the database to the 11g version. The architecture of the 11g RAC and some new features of the

Oracle11g‑uard physical standby Database Configuration series documents oracle11g‑uard physical standby database configuration (1) Create oracle11g‑uard physical standby database configuration (2) active‑uar .. Oracle11g‑uard physical standby Database Configuration series documents oracle11g‑uard physical standby database configuration (1) Create oracle11g‑uard physical standby database configuration (2) active‑uar .. Oracle

Home> database> Oracle> body Install oracle 11g in linux 14:17:56 let me say something Add to favorites I want to contribute [Font: small and big] My linux version is centos5.5 and the kernel version is 2.6.18-194. el5. in linux, it is best to install the oracle System with 1 GB memory

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 First row of data3 third row of dataNext, perform a recovery operation on the data you just deleted:1. Turn on the mobile function of the tableSql> ALTER TABLE TB_FLASH1 enable row movement2/The table has changed.2. Restore the table to the time when the data was deleted (note that the time is as close as possible to the time you deleted the data or slightly forward)Sql> Flashback table Tb_flash1 to timestamp2 To_timestamp (' 2013-01-26 15:58:

Some ASP. NET + Oracle 11G systems write-and-learn essays, including referencing Oracle's official data provider and changing the date format of Oracle storage. (8) Reference Oracle's official data provider At the end of the last post "Oracle 11g Study Notes (3)", an ASP

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

Tags: style http io ar color OS sp for onInstall Oracle 11G Release 2 (11.2) on Oracle Linux 7 (OEL7)This article presents what to install the Oracle 11G on Oracle Enterprise Linux 7 (OEL7).read following article How to install

Databases are mainly used to partition different types of databases. In actual applications, most Oracle databases use the Partition Function to improve query performance. The Oracle 11g partition function can simplify the daily management and maintenance of databases, this greatly reduces the workload of DBAs (Database Design and Management Engineers. The new fe

Tags: 11g hand-built library Oracle 11gFirst step: Catalog-- Database Files directory$ cd $ORACLE _base/oradata$ ls-- When you see a library that already exists SIDPROD$ pwd-- Take a look at the absolute path/u01/app/oracle/oradata$ mkdir HYL$ ls-l-- production look at the directory and permissions-- plan the different

) (PORT = 1521)) (connect_data = nbsp; (SERVER = dedicated) (service_name = oracle.bak) ) oracle Home is the Oracle client path, mine is e:\oracle\instantclient _12_1,oci Library is e:\oracle\instantclient_12_1 \oci.dll. With these two things you should be able to access someone else's

Oracle 11g Data guard based on the same host 1. Restrictions on logical standby DatabasesThere are many restrictions on the logical standby database. For example, some special data types such as object, nested table, rowid, object type, and custom data type are not supported, andIt supports segment compression and does not support a lot of things such as some specific DDL statements. For more information,

standby logfile thread 2 group size 50M, group size 50M, group size 50M; --DG related configuration (fal_client 11G has been deprecated, file_name_convert after testing only RMAN replication data used to convert paths, standby settings can) alter system set fal_server= standby sid= '*'; Alter system set Standby_file_management=auto sid= ' * '; Alter system set log_archive_config= ' dg_config= (ORCL, Orclbak) ' sid= ' *; Alter system set log_archive_d

: Create the installation path and modify the permission:Mkdir-p/opt/11g/oracleChown-R oracle: oinstall/opt/11g/oracleChmod-R 775/opt/11g/oracleMkdir-p/opt/11g/oraInventoryChown-R oracle: oinstall/opt/

An outline that is roughly written in the optimization content of the physical design and logical design of the DB, mainly physical design, logical design introduction of the content is not much, the outline of the physical structure design and example optimization of organic combination of the logical structure design and application adjustment together ... Oracle Performance Tuning Guidance outline Desi

Tags: Oracle Linux due to project requirements, the need to install Oracle 11g on 64-bit Linux systems, a lot of content on the Internet, combined with their own practical experience, finally installed successfully, recorded, and shared to the needy comrades. First, installation Preparation If you are using a text-interface Linux, install the Linux GUI first. Bec

Oracle.sysman.emcp.EMDBPostConfig Invoke Warning: WARNING ************************ The management repository is placed in safe mode, in which Enterprise Manager data is encrypted. The encryption key has been placed in the file d:/app/10188535/product/11.2.0/dbhome/a23181215.z The Te.intra_dw/sysman/config/emkey.ora. Be sure to back up this file, because if this file is lost, the encrypted data will not be available. *********************************************************** Configuration of

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 XpSpecific operation:First, install X windowYum gro

SQL Optimization Oracle SQL optimization is a complex topic, and even requires the entire book to introduce the nuances of Oracle SQL optimization. However, there are some basic rules that every Oracle DBA must follow. These rules can improve the performance of their systems. The goal of SQL optimization is simple: . Eliminate unnecessary full table search for la

In Oracle database systems, the parameters that play the role of tuning are called initialization parameters, which are recorded in the Initsid.ora file in Oracle 8i and previous versions, while Oracle 9i/10g/ These parameters are recorded in the Spfilesid.ora binary in 11gBasic parameters: A set of adjustable paramete