This preface contains:
The following are changes in Oracle Database Advanced Replication for Oracle Database 12c Release 1 (12.1).
Oracle Database Advanced Replication is deprecated in Oracle Database 12c Release 1 (12.1), including multimaster replication, updatable materialized views, multitier materialized views, and deployment templates. Use Oracle GoldenGate to replace Advanced Replication.
See Also:
The Oracle GoldenGate documentation