Data has become the “new oil”, a critical asset with massive value. That’s why businesses and government institutions alike keep investing in ways to prevent data corruption or loss, whether caused by human error, system failure, or even natural disasters.
One of the most effective mitigation strategies is database replication. This technology allows organizations to copy and distribute data from one database to another, ensuring users can access relevant data in near real time. But how far can database replication go in preventing business data loss?
Let’s break it down.
What Is Database Replication?
As mentioned earlier, database replication is the process of copying data from a central database to one or more additional databases. This step is essential for minimizing the risk of data corruption or loss, especially when the main database server experiences disruptions.
The central database (often called the publishing database) provides data to users in other locations. The data stored here is replicated to databases located elsewhere, and every connected user will see the same dataset.
Any change made in one database is copied, synchronized, and merged. The central database then replicates those changes to other users or systems. For persistent users such as file servers, this process happens continuously within seconds, seamlessly.
As a result, users can work across different databases while still viewing almost identical data, even if they are operating in different locations.
How Database Replication Works
Database replication can be a one-time process or an ongoing operation that involves multiple data sources across a distributed infrastructure.
A distributed database management system (DBMS) is typically used to replicate and distribute data across all data sources. In general, a distributed DBMS ensures that any changes, additions, or deletions made in one location will automatically be reflected in another.
In other words, the DBMS acts as the backbone that manages database replication, enabling distributed databases to function as one synchronized system.
3 Oracle Replication Solutions to Prevent Data Loss
To help organizations prevent data corruption and loss, Oracle offers three major database replication solutions:
- Oracle Data Guard (ODG)
- Oracle Active Data Guard (ADG)
- Oracle GoldenGate (OGG)
Here’s what makes each solution valuable.
Oracle Data Guard
Oracle Data Guard (ODG) is an active standby replication solution designed to ensure availability, protection, and disaster recovery for enterprise databases.
ODG provides end-to-end services for creating, maintaining, managing, and monitoring one or more standby databases, so the production database stays protected from disruption, corruption, or unexpected downtime.
ODG maintains a standby database as a duplicate of the transactions happening in the production database. When the production database becomes unavailable whether due to planned maintenance or an unplanned incident, ODG can switch the standby database into production mode to minimize downtime.
Oracle Active Data Guard
Oracle Active Data Guard (ADG) supports replication with an active–active read-only approach.
With ADG, customers can access databases from both the main data center (DC) and the disaster recovery site (DRC). However, the DRC site is read-only, meaning it can be used for operations such as SELECT queries.
ADG extends the functionality of standard Data Guard (ODG) by providing advanced capabilities, especially the ability to run real-time queries on the standby database.
This allows organizations to use standby systems not only for recovery, but also for operational needs such as reporting and analytics.
Oracle Golden Gate
Oracle GoldenGate (OGG) is part of Oracle Fusion Middleware and offers replication at the transaction level for enterprise databases. OGG can be used for cross-database replication, for example: Oracle to MySQL and MySQL to Oracle
GoldenGate is also widely used for database migration, whether moving from another database platform into Oracle or enabling replication between heterogeneous environments.
Today, Oracle GoldenGate supports multiple operating systems and multiple database platforms, making it a strong choice for modern enterprises that run into mixed environments.
Get Oracle Solutions from MBT
Now is the time to strengthen your database strategy, improve access, maintain continuity, and reduce the risk of business data loss through Oracle replication solutions.
Mega Buana Teknologi (MBT), as an official Oracle partner in Indonesia, provides end-to-end support to help your organization implement Oracle replication solutions effectively.
Backed by certified and experienced IT professionals, MBT can support your replication implementation from consultation to deployment, including after-sales support to ensure your applications and business operations stay protected.
Get Oracle solutions from MBT by contacting us at support@megabuana.id
Author: Dede Ismail, MBT Database Engineer
