I'm trying to find out if replication existed in Oracle in any form in versions previous to Oracle 7? Were snapshots introduced in 7, or were they available in earlier versions? I have worked with 6, but I honestly don't recall if there were snapshots there or not? Thanks! RF Robert G. Freeman Master Principal Consultant, Oracle Corporation, Oracle ACE Author of various books on RMAN, New Features and this shorter signature line. Blog: http://robertgfreeman.blogspot.com Note: THIS EMAIL IS NOT AN OFFICIAL ORACLE SUPPORT COMMUNICATION. It is just the opinion of one Oracle employee. I can be wrong, have been wrong in the past and will be wrong in the future. If your problem is a critical production problem, you should always contact Oracle support for assistance. Statements in this email in no way represent Oracle Corporation or any subsidiaries and reflect only the opinion of the author of this email. -- //www.freelists.org/webpage/oracle-l