You can use the migration lineage service to visualize the data flow and connections in your source database and

## Feature Feature You can use the [migration lineage service](https://cloud.google.com/bigquery/docs/migration/migration-lineage) to visualize the data flow and connections in your source database and help you plan a BigQuery data warehouse migration. This feature is in[Preview](https://cloud.google.com/products/#product-launch-stages).