Database Duplication for Oracle
You can duplicate databases from backups, or from an active database to the same or a new host.
A duplicate database is a copy or a subset of the target database and has a unique database identifier (DBID). It is independent of the primary database and can be registered in the same recovery catalog as the primary database.
Create a duplicate database for testing, and demonstrations.
When you duplicate a database from an active database, no backup is required. The duplicate database is a copy of the current data on the target database.
The duplicate database can be on the same or different host with or without a configured instance.
You can create a duplicate database without connecting to the target database (targetless clone) when:
- The target database is on a different network than the destination database
- The target database is unreachable (for example, in a disaster recovery scenario)