Datastream can pull changes to data from on-premise or cloud-hosted MySQL, Oracle, and PostgreSQL databases.
For a MySQL database, you must set up binary logging.
For an Oracle database, you must set up supplemental logging and set configuration parameters for the database's redo log files.
For a PostgreSQL database, you must enable logical replication and set configuration parameters for the database's WAL log files.
To pull changes from the source database using Datastream, you must establish connectivity from Datastream to the source database. For information about network connectivity methods, see Network connectivity options.