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This page describes data migration options in Cloud SQL.
Database Migration Service
Database Migration Service offers multiple migration paths to serve a wide variety of use cases:
Homogeneous migrations let you move data without changing your database SQL engine from self-managed or cloud offerings. Database Migration Service can help you migrate from backup files, or take the snapshot for you.
Heterogeneous migrations from Oracle and SQL Server sources to Cloud SQL for PostgreSQL let you convert your database objects to PostgreSQL with the assistance of Gemini-powered conversion features. These features help ensure your database objects' consistency and quality in the converted PostgreSQL schemas.
Database Migration Service in Cloud SQL for PostgreSQL
A special, lightweight migration flow called quick-start migrations is integrated directly into Cloud SQL for PostgreSQL to help expedite homogeneous migrations from sources that have a private IP address in your Google Cloud Virtual Private Cloud (such as self-managed databases on Compute Engine, or Cloud SQL for PostgreSQL instances enabled for private networking).
In this flow, Database Migration Service can automatically manage all the networking requirements to connect to your source database. For more information on quick-start migrations in Cloud SQL for PostgreSQL, see Quick-start migrations guide.
Replicate from an external server
Another option for migrating data from an external server into Cloud SQL is to use replication. Cloud SQL supports various replication modes to migrate data into your instance.
For more information, see About replicating from an external server.
To set up Cloud SQL for data migration by using replication, see Configure Cloud SQL and the external server for replication.
Limitations
- If your instance has customized backup settings (for example, a custom backup location), then after you promote the instance, we recommend that you customize your backup settings again. During the promotion process, Cloud SQL resets your backup settings to their default values.
- After you promote an instance, we recommend that you enable point-in-time recovery.