oracle 11g tuning

in the IP of the server650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M01/96/3C/wKiom1kecpHj5NQQAADdP9jKZ-Y886.png-wh_500x0-wm_ 3-wmp_4-s_1026585633.png "title=" Netca_12 "alt=" Wkiom1kecphj5nqqaaddp9jkz-y886.png-wh_50 "/>Here's the Yes test, and then the end of the same as before, to this Oracle installation deployment has been completed[[email protected] ~]$ lsnrctl start# Start monitoringUnder Start test under

following options: ASM This is the preferred storage option for Oracle and is the only configuration supported in the RAC Standard Edition OCFS2 Bare devices are not recommended, not only because they are deprecated by the new Linux kernel, but also not supported in Oracle 11.2 Network File System (NFS) The Red Hat Global file System is only supported in Red Hat and

wasn't restored from a sufficiently old backupOra-01110:data file 1: '/OPT/ORACLE/ORADATA/TPY100/SYSTEM01.DBF 'Is the standby monitoring is not open, using lsnrctl start, start monitoring, and then open the database will not error.sql> ALTER DATABASE recover managed standby database using current logfile disconnect from session;The test has the following statement:Sql> select sequence#,applied from V$archived_log;Sql> select Process,status from V$man

Test environment above Oracle database performance parameter settings1. Close the Recycle BinAlter system set Recyclebin=off2. Modify the size of the redo logThe default size of 11g is 50m if redo file compares small OLTP logs more than the case will cause more redo FileSwitch recommended to modify the default size at DBCA time 500m to 1G better.If you have already created and the table is small, you can ex

Tags: ada parameter mode space min Ram Create base IAREnvironment: Simulating the creation of the main library use the Install option in the DBCA Start graphical interface option---> select Create and configure a databaseCreate a mock-up library using the Install option in the DBCA Startup graphical interface option---> Check the install database software onlyPreparation using the Oracle 11g Rman feature fo

Oracle 10g UPDATE 11g Training Project 1. Project Process:1. Install 11.2.0.3 database software on the server where the Oracle 10.2.0.5 database is located2. Execute dbua in the environment variable 11.2.0.3 and upgrade the Graphical Database.3. Subsequent work: Modify compatible and other operations in spfile2. Modify Linux Kernel Parameters and necessary instal

undertakes read operations. This architecture is suitable for read-intensive types of applications, and read performance can grow linearly by increasing the number of Slave DB. To avoid a single point of failure in Master DB, the cluster typically uses two Master db for dual-machine hot standby, so the entire cluster has very high levels of read and write availability. In addition to providing Active Standby functionality from 11g, mysql,

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Solution to ORA-01417 under Oracle 11g Today there is customer feedback, there is a SQL on 12C no problem, on Oracle 11g, the error is reported, the error content is ORA-01417: The table can be externally connected to at most one other table. This section analyzes the SQL statements and abstracts them into the followin

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 into an empty table and then deletes it, resulting in a segment. An empty table can be export

Oracle 11g Alert Log location Oracle 11g Alert Log location 1. Obtain ADR-related information by querying the v $ diag_info View ADR(Automatic Diagnostic Repository)--> A a file-based hierarchical data store for managing diagnostic information, including network tracing and logging. Code: sys@ora11g>select * from v$dia

Tags: Modify OCA res scope control File View 11g routed iOS1. Understanding Backup and Recovery issuesThree indicators related to backup recovery are: MTBF average trouble-free timeMTTR mean failure recovery time.Data loss: How much to lose the book data.There are three advanced options for Oracle RAC Steam and DG that have an impact on performance (good bad)2. Type of failure1) Statement failure: DML state

stats collection ', operation = Null,window_name = NULL);--Enable automatic collectionEXEC dbms_auto_task_admin. ENABLE (client_name = ' Auto Optimizer stats collection ', operation = Null,window_name = NULL);--View JobSelect Client_name,status from Dba_autotask_client; client_name NB Sp status - ----------------------------------------------------------------------- Auto Optimizer stats collection enabled Auto Space advisor NBSP ;

The following is a summary of the problems encountered when oracle 11g uses deferred_segment_creation to create a feature. Problem 1: You can create tables in all tablespaces. Problem 2: exp cannot export empty tables. Problem 1: Version: oracle 11.2.0.1.0 Select * from v $ version; create user aaa and grant the connect and resource roles to the User, but revoke

restriction can be used only when there is no record in the table or the default value is specified.1.3 DescriptionThrough the above description, I have a certain understanding of add column. Before Oracle 11g, if we want to add a column that is not empty, we need to specify the default value. If the table is very large, after adding the column, update all records in the table and add new default values. T