Migration from an existing non-distributed database to a distributed database consists of two phases: schema migration and data migration. Oracle Globally Distributed Database provides guidelines for migrating your existing database schema and data to a distributed database.

The following approaches are recommended for database migration.

• Migration with Oracle Data Pump

• Using External Tables to Load Data into a Distributed Database

• Using Oracle GoldenGate to Replicate Data Between Distributed Databases and Non-Distributed Databases