A basic Sybase replication system consists of three components:
Primary database – a database in which original data-changing operations (or transactions) are performed. Only completed transactions are captured for replication.
Replication Server – a Sybase Open Client™ and Open Server™ product that receives transactions to be replicated from a primary database, and delivers them to a replicate database.
Replicate database – a database that receives replicated transactions from a Replication Server and applies those transactions to its own “copy” of the primary data.
If both primary and replicate data servers are Adaptive Server Enterprise (ASE), you can implement a replication system with only these three components. Adaptive Server Enterprise includes all the features necessary to support a Sybase replication system, with no additional components other than the Replication Server.
Figure 1-1 illustrates a basic Sybase replication system, showing the flow of data between two Adaptive Servers and a Replication Server.
Figure 1-1: Basic Sybase replication system
Data flows from the primary database to the Replication Server, and then to the replicate database.
For more information about basic Sybase replication system concepts and Replication Server features, see the first two chapters of the Replication Server Administration Guide.
