The Need For Oracle Database Replication

Database replication is the task of storing data in several locations, both local and remote so that the current database can be accessed from any point. Data is replicated from a server to be shared across regions. The main benefit of database replication is disaster recovery. When an outage occurs in the primary server, the secondary servers where data has been replicated are automatically triggered and there is no break in work. After the issue is resolved the primary server is updated with all records that occurred in the break period.

The mechanism that is greatly used by various organizations to distribute, share and consolidate their data is Oracle replication. It helps in creating, distributing, and syncing data over multiple locations so that consolidating data from various sources and sharing data with users and vendors can be done easily and seamlessly either globally or locally. The cost of data analytics with query overload by splitting OLTP and the generation of reports into various systems is also greatly facilitated by Oracle replication.


Another advantage of Oracle replication is that users can access information whenever needed by creating synchronized multiple copies of an Oracle database. These are useful for testing, business reporting, backups for disaster recovery, and distributed data processing.

There are two forms of Oracle replication.

The first is Synchronous replication where data is replicated continuously to the primary and secondary areas. The data replicated remains the same in the source and target databases.

The other is Asynchronous replication where the data is written first to the primary server and then committed to a secondary source instead of the two working together. The data is copied at pre-determined intervals.      

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