We ran 8.1.7.4 SE with standby database on Win2k for many months before finally upgrading to EE. ARC redo logs were manually shipped via custom scripts and applied every hour via a scheduled task. AFAIK both servers must run the same edition and be at the same patch level (least we made sure they were so as not to fall into any traps with support). HTH Tim -----Original Message----- From: dba1 mcc [mailto:mccdba1@xxxxxxxxx] Sent: 29 October 2004 21:40 To: oracle-l@xxxxxxxxxxxxx Subject: [Q] does ORACLE Standard Edition support Standby database function??? I know on ORACLE 8i and 9i Standard Edition does NOT support "data guard redo apply and SQL apply". Does ORACLE Standard Edition on 8i support "standby database"? Does both servers need be same version (like both servers must SE or EE)? Thanks. _______________________________ Do you Yahoo!? Express yourself with Y! Messenger! Free. Download now. http://messenger.yahoo.com -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l