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For some reason, such as data abnormal power, resulting in serious awr data inconsistency, awr part of the table damage, and so on, need to rebuild awr, can refer to the following steps for reconstruction, this article mainly for the current mainstream 10g and 11g version of the database, 12c did not testStop AWR automatically gather information Method 1: Parameter tuning Sqlplus/nologConnect/as SYSDBACreate pfile= '/tmp/pfile.xifenfei ' from SPFile
In the 64-bit Windows 8 Enterprise Edition environment, we connected the oracle11g server for two days. We will share the process for your reference. Local Environment: 1. SERVER: Oracle 11g R2 64-bit, installation path E:/org12 Download: http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html 2. Client: (1) Instant Client, lightweight, installation path E:/oracle11/ClientHttp://www.oracle.com/technetwork/database/
At oracle11g, the Enterprise Manager of the client cannot be found. Does Oracle provide enterprise manager? Of course not, but Oracle does not provide enterprise managers in the C/S architecture. Oracle provides an Enterprise Manager with B/S architecture. Run emctl start dbconsole on the Linux server to start the Enterprise Manager, and emctl stop dbconsole to stop the Enterprise Manager. Of course, you can also view the status of the Enterprise Manager, which requires the execution of emctl
the three encryption tests for WEP, WPA, and WPA2, the main reason for the significant change in the transmission rate of wireless networks is that the IEEE 802.11n standard does not support high throughput rates for unicast ciphers with WEP encryption (or TKIP encryption algorithms). In short, the 11n product does not support the WEP encryption method or WPA-PSK/WPA2-PSK encryption method TKIP algorithm, if the user chooses these encryption method, the wireless transmission rate will automatic
When a function is used in a query, the return value is affected.Like what:Select COUNT (*) from customers where lower (cust_state_province) = ' CA ';The optimizer knows only the statistics on the original column, but does not know the statistics after the lower function has been turned, the selectivity of the column will be affected, but the optimizer cannot tell. After a function is used for a column in a SQL statement predicate, the optimizer simply considers the column to be 1% selective. Th
In Oracle 11g, ASM supports both 10g and 11g databases. However, the ASM version cannot be less than the database version.Two parameters related to compatibility now:Compatible.rdbmsThe minimum supported version of the Oracle database.compatible.asmControls the data storage format for ASM metadata on ASM disks. For example, if you set the value of Compatible.asm to 11.1, the ASM software version must be at
Oracle 11g error ORA-28000 the account is locked I. the cause and related factors of this error are caused by the default setting of "PASSWORD_LIFE_TIME = 180 days" in the default profile in oracle11g, there is a password expiration problem in Oracle 11g. Www.2cto.com 2. error phenomenon: After the user is locked, the ORA-28000 error will be reported, and prompt cannot log on to the Database SQL> conn syste
Oracle 11g 64-bit automatic restart, automatic shutdown command in RHEL (Red Hat EnterPrise Linux) 5.5 64-bit Oracle 11g 64-bit in RHEL (Red Hat EnterPrise Linux, 5.5 64-bit automatic restart and shutdown command: www.2cto.com Log On As an oracle user and enter: vi/etc/init. d/oracle on the editing page, add the following content: (assume that the main Oracle directory is/u01/app/oracle/product/11.2.0/dbhom
Windows 7 + 64-bit + Oracle + 11g + 64-bit use PLSQL + Developer solution 1) install Oracle 11g 64-bit 2) install 32-bit Oracle client (instantclient-basic-win32-11.2.0.1.0) download instantclient-basic-win32-11.2.0.1.0.zip (it must be a 32-bit version. Do not download it on the Oracle official website.) decompress it to the Product in the Oracle Installation Directory (the local name is instantclient_11_2
When you want to evaluate the impact of an index on your SQL query statement, when your database is 11 GB, you can quickly set the index to visible or invisible. In commendable cases, when the index is set to invisable, the index will be maintained as usual when the DML statement occurs. That is to say, the index in the invisable state is not invalid, the optimizer does not select the index path. The following is an experiment to verify: SQL> select * from V $ version; banner implements 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 and 2 GB swap space. The hard disk requires at least 4 GB space.1. Download oracleGo to the oracle official website to download the cor
Oracle 11g R2 installation manual (Graphic tutorial) For Windows 7 flagship EditionBy GLC 2010/5/12 XiDian University http://hi.baidu.com/glc4001. Download Oracle 11g R2 for Windows, as shown belowOfficial Website:Http://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_database_1of2.zipHttp://download.oracle.com/otn/nt/oracle11g/112010/win32_11gR2_database_2of2.zip2. Extract the two packages to the s
Oracle 11g R2 Software Download URL favorites Record To download the software on OTN, you need an OTN free account. However, if you download the software through thunder, you do not need to log on to OTN. Win64 Http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_client.zip Http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_database_1of2.zip Http://download.oracle.com/otn/nt/oracle11g/112010/win64_11gR2_database_2of2.zip Win32 Ht
1.2 requirement Software Installation A typical development environment includes the following components: Jdeveloper-refer to 3.1 "installing Oracle jdeveloper ." Webcenter extension bundle-please refer to 3.2 "installing the webcenter extension bundle ." Supported database-(optional) for example, Oracle Database 11g. Supported content repository-(optional) Example: Universal Content Management (UCM) 11g
mounted. SQL> show parameter memory_target Name type value ----------------------------------------------------------------------------- Memory_target big integer 1344 m -- Memory_target has 1344 MB. [Root @ Rac1 ~] # DF-lH Filesystem size used avail use % mounted on /Dev/sda3 14 GB 11g 2.4g 83%/ Tmpfs 978 m 88 K 978 m 1%/dev/SHM /Dev/sda1 194 m 46 m 139 m 25%/boot -- The tmpfs is only 978 MB. I have modified this parameter when installing DB: [Ro
Oracle 11G R2 RAC modify archive Mode The non-archive mode is used by default after the database is created. You need to modify it. Recommended reading: Oracle 11g rac ocr and db_unique_name Configuration Reconfigure and uninstall Oracle 11GR2 Grid Infrastructure Test the first method: SQL> archive log list; Database log mode No Archive Mode Automatic archival Disabled Archive destination USE_DB_RECOVERY_FI
default yum source speed of the system is often unsatisfactory and all components are connected overseas. In order to achieve quick installation in China, you must modify the yum source. Http://mirrors.163.com/http://mirrors.sohu.com these two domestic sources. Run the following command. Cd/etc/yum. repos. d Mv CentOS-Base.repo CentOS-Base.repo.bak Wget http://mirrors.163.com/.help/centos-base-163.repoor wget http://mirrors.sohu.com/help/CentOS-Base-sohu.repo Run yum makecache to generate Cach
Oracle 11g R2 returns a EXP-00011 error solution with EXP Export C: \> exp businessdata/businessdata file = dropcol. dmp tables = ACSTRULE, ARREARSCFG, role al_account, role al_account_his, INVOICE, INVOICE_HISTORY, role, RULCOCAP, STEVREAC Export: Release 11.2.0.1.0-Production on Mon Dec 5 19:59:39 2011 Copyright (c) 1982,200 9, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g
We have previously introduced the virtual columns and read-only tables in the new Oracle 11g feature. Today we will introduce another new feature, the combined trigger. In earlier versions of Oracle, you can use the FOLLOWS keyword to control the trigger execution sequence. For example: 01 CREATE OR REPLACE TRIGGER XXX_TRG 02 BEFORE INSERT 03 ON XXX_TABLE_NAME 04 REFERENCING NEW AS NE
Flashback is based on the content in the undo segment. Therefore, due to the undo_retenton parameter, to use the flashback feature, you must enable automatic tablespace revocation. Oracle flashback data archive (FDA) is a new feature in Oracle11g. By storing changed data to another created flashback archive ), different from undo, you can set a separate storage policy so that it can return to the old data before the specified time without affecting the undo policy. In Oracle
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