oracle to hadoop replication

Preface The growing demand for distributed applications requires a better distributed software environment, which drives the development of distributed technology. Oracle data replication is a technology for implementing distributed data environments, which can be used to create distributed data environments by copying data from different physical sites. Unlike a distributed database, in a distributed data

The following articles mainly describe the synchronization-related replication of Oracle Advanced Replication. If a company needs to set up a server (Oracle) in several related places throughout the country, the consistency of related DB data is required. One of the following is a test scheme: Synchronous

Currently, the following technologies or solutions are available for remote replication and Disaster Tolerance of oracle databases: (1) Disaster recovery replication solution based on the storage layer The replication mechanism of this technology is based on the SAN-based storage LAN for

solution based on storage devices. You can also choose synchronous or asynchronous modes,HardwareEnvironment consistency requirements are also high, for large data volumesApplicationIt is advantageous. If the target system is readable, a third-party image must be created. I personally think that this technology is more suitable for systems with large data volumes or disaster recovery replication of application systems than the storage-based

oracle| Solution | data | database Shareplex® is the industry's most sophisticated high-performance/high-availability data replication solution. With the features of less network occupancy, flexible configuration and quasi real time replication, it can solve many usability problems of key applications. In the past five years, the product technology has been succe

method is a complex programming, with great difficulty.5. Use the SQLSERVER2005 replication feature to synchronize data from the Oracle database to SQL Server servers, where the program only operates on server and does not link the Oracle database.This method does not need to write any code, because only SQL Server query, so the query efficiency can be long tabl

programming, with great difficulty. 5. Use the SQLSERVER2005 replication feature to synchronize data from an Oracle database to a SQL Server servers that operate only SQL Server and do not link Oracle databases. This method does not require any code to be written, because querying only SQL Server makes it efficient to have multiple table links, developers do n

This article briefly introduces ORACLE's advanced replication capabilities and, through a practical project, discusses how to use advanced replication to achieve data unification within and outside the network in level two db, and finally gives a configuration script for your reference. 　　 1. Basic Concepts ORACLE 　　

1. the Oracle 10g Stream table-level replication configuration () was previously implemented. If a replication environment already exists, you need to clear the existing replication environment before configuring other types of replication, otherwise, the

Tags: Database synchronization oracle Goldengate replication.oraclegoldengateIntroductionGOLDENGATETDM (transaction data management) software is a log-based structured data replication software, which through the analysis of the source database online log or archive log to obtain data deletion and change, and then apply these changes to the target database, to achieve the source database and target database

The following article mainly introduces the Oracle replication method in detail, which involves the connection of public databases during the running process. It requires three database connections for each replication, and the global name of the database specified by the public database connection. Set the materialized view site: 1. Create a

The Oracle single-Table stream replication solution fails because of the many procedures of oraclestream and many problems encountered previously. The Oracle single-Table stream replication solution fails because of the many procedures of oracle stream and many problems enco

MySQL replication and Oracle logical standby are both SQL apply. What is the difference in implementation?Binary log and redo transmission principlesMySQL replication can be easily used for application read expansion, and can also help MySQL implement a certain level of HA solutionIn fact, the whole replication process

The Sybase replication server (Sybase Replication server), in addition to replicating data with the Sybase system, is used to replicate heterogeneous databases, including Oracle, MS SQL Server, DB2, Ianywhere, and so on. and become the foundation of the enterprise-wide client/server application model. How the Sybase-sybase r