Oracle

When one is running on a 64-bit platform. NET application attempts to invoke a DLL that does not support 64-bit execution, this exception occurs. If the application is generated in an unspecified platform (for example, "any CPU"), it will run in the

Let's take a look at an intuitive picture:Oracle 11gArchitecture DiagramUnderstand the Oracle architecture to fully understand three concepts : database, database instance (instance), session, Be sure not to confuse these three concepts.The concept

IntroductionJava is a programming technology originally developed by Sun Microsystems and later acquired by Oracle. Oracle Java is a proprietary implementation for Java that's free to download and use for commercial use, but not to Redis Tribute,

HelloBeijing Shennao invites you to attend a webinar using WebEx.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/26/93/wKiom1NsNPyRskMBAAHJ9r7TrVI221.jpg "title=" 003bjgtkzy6idhcb5li60&690.jpg "alt=" Wkiom1nsnpyrskmbaahj9r7trvi221.jpg

The V$sql_plan view provides a way to check the execution plan of a cursor that is still in the library cache. The information in this view is very similar to the information in the Plan_table view. However, EXPLAIN plan shows the theory that can be

A trigger is a code block automatically executed when a specific event occurs. It is similar to a stored procedure, but users cannot directly call them. Triggers are a technology provided by many relational database systems. In the ORACLE system,

-- Source Database Configuration [Oracle @ db12c ~] $ Sqlplus/as sysdbaSQL * Plus: Release 12.1.0.1.0 Production on Tue Apr 8 14:24:15 2014Copyright (c) 1982,201 3, Oracle. All rights reserved.Connected:Oracle Database 12c Enterprise Edition Release

--- Indicates flashing back to the database --- Use a flashback table to restore the table content to a specific time point in the past --- Restore from the deleted table --- Use the flashback query to view the database content at any point in time -

Configuring hugepage in Linux can improve oracle performance and reduce the page switching of oracle sga, similar to the lagepage in aix.Why use big pages? The default block size for LINUX memory is 4 kb.If the SGA is 128GSelect 128*1024*1024/4 from

1.1 Data Management Overview 1.1.1 what is Data Management Compared with humans, the biggest advantage of computers is that they can run at high speed and accurately. The process of running computers is the process of executing program code and

Chapter 2 Process Architecture) This chapter discusses the processes of Oracle databases. This chapter contains the following sections: · Introduction to Processes · Overview of Client Processes · Overview of Server Processes · Overview of

Today, I will introduce you to the implementation of offline backup in oracle databases and some precautions when using offline backup in oracle databases. Let's take a look. Cold backup is a physical backup of database files. It is usually

Note: The following operating environments are available in CentOS 6.4 + Oracle 11gR2 (Oracle is installed in ORACLE_BASE =/opt/oracle, and ORACLE_HOME =/opt/oracle/11g) After installing and configuring the Oracle database with OUI, Oracle is

When studying Oracle, you may encounter oracle tablespace recovery problems. Here we will introduce the solutions to Oracle tablespace recovery problems. Here we will share with you. Oracle tablespace recovery plan 1. User tablespace Error:A ora-0115

Here we will introduce how to unlock users in Oracle. We generally use the default password to unlock users in Oracle. I hope this article will help you. 1. automatic Installation selected during installation. Because the user name and password have

Before giving you a detailed description of Oracle free data blocks, let's first let you know the data stored in the rollback segment, and then give a comprehensive introduction to Oracle free data blocks, hoping to be useful to everyone. Here we

If you have some questions about the practical application of Oracle CPU optimization, the following articles mainly introduce the practical application solutions for optimizing Oracle CPU usage using Oracle to optimize CPU usage, to solve your

In the Oracle service, we will discuss Oracle Names service today. When the service caches Oracle Names data used to connect to a remote database. Its default start type is manual. However, unless you have an Oracle Names server, you do not need to

The following articles mainly describe the Common commands of Oracle DBA through the code of the actual application. If you are a beginner in Oracle DBA, you can use the following articles to understand the specific operations or related functions.

I believe many people have encountered the ORA-02429: cannot drop index used for enforcement of unique/primary key error, the corresponding Chinese prompt "ORA-02429: Unable to delete the index used to force a unique/primary key ", in fact, the