Oracle
How to install and run Oracle on your Linux machine start action
It can be pretty easy to install Oracle on Redhat, but if you follow Oracle company completely
Documentation is not always easy to walk through. The quickest shortcut is Tom
There is a serious performance problem with a customer's database, and according to AWR's report, system performance issues are related to rollback contention.
Normally, the AWR db time information for the client database is:
elapsed:119.92 (mins)
The Parallel_max_severs parameter sets the maximum number of processes available for parallel execution, and the default value for this parameter is as follows:
1. When Pga_aggregate_target >0
parallel_max_servers= (Cpu_count x
I. SummaryIn the normal storage and database migration, when encountering a large database when using exp often takes a few hours, time consuming. oracle10g later can use EXPDP to export the database to spend much less time than Exp spent, and the
Oracle Database 11g Some important initialization parameters (i)Initialize parameter file locationD:\app\Administrator\admin\orcl1\pfile\init.oraInit.ora1, Diagnostic_destIn 11g, there is a new structure for storing diagnostic information called the
Two methods of Oracle rename data files2012-12-11 20:44 10925 People read comments (0) favorite reports Classification:Oracle (98)Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.First
When using PL/SQL developer, the query out of the text field is garbled, because the database number format and PL/SQL Developer encoding format is not uniform caused.I. Viewing and modifying the Oracle database character setSelect Userenv ('
Application of incremental backup in recovery phase, no longer restore phaseUnderstanding the Database Settings table:Sql>desc database_propertiesName Null? Type----------------------------------------- --------
For people who have just started learning from Oracle. Even for some experienced Oracle DBAs, Oracle's account login issues are often tricky. Even if you have successfully logged in to Oracle, you know the reason why.The author after systematic
Clear ScreenHost CLS;View Current UserShow user;Tables under the current userSELECT * from tab;tab data DictionaryDESC EMP;Find information for all employeesSELECT * from EMP;Querying by Column nameSelect Empno,ename,job,sal from EMP;Query employee
Using Oracle Berkeley DB as a NoSQL data storeShashank TiwariReleased February 2011"NoSQL" is a new buzzword among developers, architects, and even technology managers. Although the term has recently been popular, it is surprising that it does not
This article focuses on the following sections: How to view queries for Oracle character sets, modify set character sets, and common Oracle UTF8 character set and Oracle exp character set issues.I. What is the Oracle character setThe Oracle
1. Exadata
1.1 Oracle Cloud Computing Introduction
As cloud infrastructure matures, more and more companies are beginning to focus on the implementation of cloud computing, accelerating the deployment of cloud computing solutions,
The separation of Read and write is an important idea of architecture distributed system. A lot of system overall processing capacity and can not keep pace with the growth of the business, so will inevitably bring bottlenecks, simple upgrade
1. Adaptive cursor sharing
1.1 ACS Overview
Variable binding allows oracle db to share a single cursor for Multiple SQL statements to reduce the amount of shared memory used for analyzing SQL statements. However, cursor sharing and SQL
About Oracle ASM instances
About Oracle ASM disk groups
About grouping and failure groups
About Oracle ASM Disks
About Oracle ASM files
About Oracle ASM instances
The Oracle ASM instance is built based on the same technology as the Oracle
To confirm whether the extension is configured, create a simple PHP script where the Web server can read it.
phpinfo();?>
Load the script to the browser using a URL similar to "http: // localhost: 8888//phpinfo. php. The browser page should contain
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