Modernize your data warehouse by migrating Oracle Database to Amazon Redshift with Oracle GoldenGate

This article provides a comprehensive guide for migrating Oracle data warehouses to Amazon Redshift using Oracle GoldenGate and AWS DMS Schema Conversion, enabling minimal downtime through continuous replication.

• DMS Schema Conversion automatically converts Oracle schemas and objects to Redshift-compatible formats
• Oracle GoldenGate performs initial data load and captures ongoing changes via CDC
• Solution uses Extract-Pump-Replicat processes running on EC2 instances for data replication
• Amazon S3 stages data before loading into Redshift; IAM roles provide secure access
• Four-step migration process: schema conversion, initial load, CDC replication, final cutover
• Requires network connectivity setup, database credentials in Secrets Manager, and S3 bucket creation
• GoldenGate for BigData only supports uncompressed UPDATE records when replicating to Redshift
• Proper SCN capture prevents data collisions during transition from initial load to CDC
• Post-migration cleanup includes stopping processes, deleting EC2 instances, and updating application connection strings

This migration approach provides a reliable, flexible method for transitioning critical data workloads to cloud-based Redshift with minimal business disruption.