This illustration shows changes made to database objects in an Oracle database recorded in the redo log. A capture process formats these changes into messages called LCRs and enqueues them. An outbound server dequeues the LCRs and the client application receives them. The client application sends the LCRs to the inbound server in a different Oracle database. The inbound server sends the processed low position back to the client application, and the client application sets the processed low position on the outbound server.