I haven't played with Logical Standby but I did read a little about it... Some other items that are mentioned in the docs... 1) Logical Standy will allow you to exclude objects from replication So, you can replicate only the portion of the database you care about 2) Logical Standby will allow you modify the objects in the standby database For example, you could replicate your OLTP database using logical standby and use the standby as a reporting instance... Since the demands of the reporting instance are different, you could add different indexes, views, MV and such to the standby that do not exist in the primary... 3) Logical Standby has a number of datatype and object type limitations No IOT's... No tables with compression... No LONG's, varrays, nested tables, user defined types etc... However, someone who has actually played with this may be able give some insight as to whether this actually works as advertised... Tim ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------