I have a read only materialized view on one server and the master table on another server. I need to add a column to the master table and the materialized view is NOT defined with=20 < create materialized view ... as select * from table@mastersite > The MV specifies the columns to replicate and I'm not interested in replicating the new column. Do I still need to perform the DDL via the dbms_repcat.alter_master_repobject(...) package procedure? Will replication break if I alter the master table without this? (9.2/RHEL3) TIA, Steve Orr Bozeman, Montana -- //www.freelists.org/webpage/oracle-l