Oracle

Excerpted from Iteye Czmmiao http://czmmiao.iteye.com/blog/1550877Goldengate IntroductionOracle Golden Gate Software is a log-based structured data replication backup software that enables the source database to synchronize with the target database

Scenario: If varchar and VarChar2 are modified more often, and the modified data length is different each time, this can cause a "row migration" phenomenonConcept:Row chaining and row migration (row migration)When a row of data is too long to be

First, Variable introductionWhen you write a PL/SQL program, you can define variables and constants, including the following in the PL/SQL program:1), scalar type (scalar)2), composite type (composite) --for manipulating individual records3),

Background: A one-party organization of the deployment of the seminar, the developers have put forward their own server requirements, party a only to a database temporary transition to use, requires the integration of several applications Oracle

Oracle Nvchar2 and VARCHAR2 differential analysis:NoteVARCHAR2 is a specific data type provided by Oracle, and Oracle can guarantee that the data type is up and backwards compatible in any version of VARCHAR2.VarChar is not recommended for use in

Oracle 10g and Oracle 11g hand-built case--oracle 10gSystem environment:Operating system: RedHat EL6Oracle:oracle 10g and Oracle 11gThe Manual construction of the library is relatively easy to implement, this case is from 10g and 11g, by hand to

Materialized views are a special physical table, and the materialized view is relative to the normal view. The normal view is a virtual table, the limitations of the application are large, any query on the view, Oracle is actually converted into a

? Describes locking mechanisms and how Oracle manages data concurrency processing? Using SQL to manage Data? identify and manage PL/SQL Objects? Describe triggers and trigger events? Monitoring and resolving locking conflicts Working with

/** * CENTOS-6.4-DVD system installed Oracle-11.2.0.4 *------------------------------------------------------------------------ ----------------------------------------------* "Preface" * was originally installed in the centos-6.4-minimal-64bit

Create a linked server on the SQL Server database, connect to the Oracle database, and the provider needs to be set to: "Oracle Provider for OLE DB". If this driver is not available on your computer, installing a complete ORACLE11GR2 program is a

In recent times, many users have raised the issue of monitoring configuration, client terminal (client) can not connect to the server side (server). This article is a brief introduction to the monitoring configuration, give the SQL Developer

When using SQL to manipulate the spatial table in Oracle, the error is entered below:The above hints indicate that the dependent SDE package reference is invalid, the SDE package is configured for the Oracle database by querying the official website,

64 location Windows 8/7 based on system 32 location PL/SQL Coupling 64 locations Oracle 11gDescription: Oracle's Oci.dll after installation is 64-bit, while 32-bit application PL/SQL Developer cannot loadHow to SolveStep one: Download instant Client

Due to the continuous updating of hardware technology, Win7 system gradually become mainstream, and computer memory gradually increased, in order to make full use of memory resources (because 32 of the system can only use up to 3G of memory),

Install the Oracle client on ASP.. net. DLL, which I have encountered before. Just reinstall the client and I am using a 2000 Professional System ). Later, I went to the Oracle official website to find a solution and downloaded Oracle Developer

In (1), we will explain how to input a String array and an int array. Here, we will explain how to output a String array. After reading the Code, some friends may wonder: why do we need to transfer the String array? Is it difficult to transmit a

This section describes how to use the default oracle creation method when creating foreign key constraints. When you delete referenced data, the data cannot be deleted, this gives us more flexible options in oracle9i, however, we use the on delete

RMAN cold Backup Recovery from different machines and rman recovery 1. Prepare the environment Install the ORACLE instance on the new server. During the installation process, ensure that the ORACLE_SID of the source server is consistent with that

Oracle rman database backup and recovery in non-archive mode, mongolerman1. database Backup SQL> archive log list in non-archive mode; automatic archiving in non-archive mode in Database Log mode disable the archiving end point

Machine:Select instance_name from v $ instance;Select name from v $ database;Select name from v $ datafile;Log query mode:Archive log list;Shutdown immediate;Startup mount;Change the log archive mode:Alter database archivelog;Alter database