oracle 11g tuning

Oracle tuning uses related SQL, oracle tuning related SQL Select * from v $ session where username is not null;Select username, count (username) from v $ session where username is not null group by username;Select count (*) from v $ process;Select value from v $ parameter where name = 'processs ';Select count (*) from

OBIEE 11g BI Management tool connection OCI 10g/11g data source times wrong [connection failed] OBIEE 11g Client Admin tools Connection to Datasource in Offline Mode fails Wit H Error "The Connection has FailedUsing OBIEE 11g BI management tool to import metadata, when connecting the OCI 10g/

Oracle 11g on July 11, 2007 11 O'Clock (Beijing time 11th 22 o'clock) officially released, 11g is Oracle 30 years to release the most important version of the database, according to the needs of users to achieve information lifecycle management (information Lifecycle Management) and many other innovations. I. Outline

First, diagnostic tools 1. Warning Log file Warning log files contain system information and error logs that contain important errors (such as: ORA-600) and block checksum error messages (ora-1578,ora-1498). Monitor database operations such as CREATE DATABASE, STARTUP, SHUTDOWN, ARCHIVE log, and RECOVER, and record Non-default initialization parameter values. When Log_checkpionts_to_alert is set to true, the warning log file also records the start and end times of checkpoints, incomplete checkpo

)----Multiple instances to open a database• Stream----Multiple Oracle servers propagate transactions to one another• Data protection----The primary database to update the standby database Determine if it is a single instance Select parallel from V$instance; --NO Single InstanceSelect Protection_level from V$database; --Standby database protection, unprotected not protected SELECT * FROM dba_streams_administrator;--has not been configured and returns n

Windows 10 x64 installation and configuration of Oracle 11g process records (Graphic tutorial), Windows 10 11g Note: I want to install an oracle exercise on my computer, but I am afraid of problems during the installation process, and oracle uninstallation is notoriously tro

feature that accelerates SQL adjustment as a whole.Through SPA, once a load (called SQL tuning set or STS) is created, Oracle will use the complex prediction module to repeatedly execute the workload (To obtain the best SQL Execution Plan for the current load. With SPA, we can predict the impact of an SQL load based on system changes, as well as the predicted image parameters.Adjustment, system schema adju

ORACLE 11G from scratch-20141208, 11g-20141208 Section 1.3.6 It is used to store all the data of an object with an independent storage structure defined in a tablespace. It consists of one or more zones. 1. Data Segment Used to store all data in a table. 2. Index segment Used to store all the data of an index. 3. Temporary Section Used to store temporary

reload the configuration file650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/87/54/wKiom1fdJGKwyngyAADJtXJrGj0547.png "title=" Screenshot_2016-09-17_18-01-25.png "alt=" Wkiom1fdjgkwyngyaadjtxjrgj0547.png "/> 4.Oracle User Environment RequirementsOracle 11g requires fixed user Oracle, installation group Oinstall, Management Group DBA, these accounts sh

Oracle 10g AND Oracle 11g manual database creation case -- Oracle 10g System Environment: Operating System: RedHat EL6 Oracle: Oracle 10g and Oracle

) RAC special problems and combat experience (V) ORACLE one-to-G Version 2 RAC ready for use with NFS on Linux (vi) ORACLE ENTERPRISE LINUX 5.7 under Database 11G RAC cluster installation (vii) ORACLE ENTERPRISE LINUX 5.7 Databases 11G RAC database installati

1 start-> All Programs->oracle products->warehouse builder->administration->repository Assistant 2 in the Pop-up Repository assistant-welcome window click Next, and enter the following image page: 　 3 fill in the host name, Port number, and Oracle Services name (database service names), which we take ORCL for example, and click Next to go to the page shown below: 4 because we are using OWB

)notnull, acc_namevarchar2(50)notnull, acc_locvarchar2(5), acc_branchnumber(2)generatedalwaysas (to_number(substr(to_char(acc_no),1,2))); Use a virtual column as the partition key: SQL>CREATETABLEaccounts (acc_nonumber(10)notnull, acc_namevarchar2(50)notnull, acc_locvarchar2(5), acc_branchnumber(2)generatedalwaysas (to_number(substr(to_char(acc_no),1,2))) partitionbylist(acc_branch); Partition recommender Oracle

Oracle-validated RPM for oracle Linux (Skip this part for your reference) Because the Database requires some software packages, software package versions, and Kernel Parameter fine-tuning, You need to configure the operating environment in advance before installing Oracle Database 10g or