ExpressConnect for Oracle (ECO) is an embedded library loaded by Replication Server® for Oracle replication.
ECO provides direct communication between Replication Server and a replicate Oracle data server, making Oracle data easily accessible in a heterogeneous replication environment. It also eliminates the need for installing and setting up a separate gateway server, thereby improving performance and reducing the complexities of managing a replication system.
Minimizes network overhead between products.
Reduces SQL parsing and datatype conversions.
Takes greater advantage of “bind variable” SQL statements where it is possible to make Oracle data server processing more efficient.
Uses array processing to the Oracle data server.
This figure illustrates a typical Sybase replication system, showing the flow of data between the data servers, through Replication Agent, Replication Server, and ExpressConnect for Oracle.
You can use ECO if you have a licensed Replication Server and have purchased Replication Server Option for Oracle.