You can keep data in your on-premises database. If you installed Data Gateway or Remote Data Connector on the on-premises network so that Oracle Analytics Cloud could access the remote data you can remove them. Oracle Analytics Server doesn't require Data Gateway (or Remote Data Connector).

1. After migration, reconfigure the connection to the on-premises database in Oracle Analytics Server or Oracle BI Administration Tool.
2. If required, add the IP address of Oracle Analytics Server to the allowlist for the on-premises database (on your firewall).
3. Optional: Remove Data Gateway (or Remote Data Connector) from the on-premises database network.