Displaying the Topology of the Oracle Streams Environment at a Database

An Oracle Streams topology displays a graphical representation of the local database and other databases that interact with the local database in the Oracle Streams environment. In a replication environment, the topology shows the following information about the databases displayed:

• The database links used by propagations from the current database to other databases in the Oracle Streams environment. Each arrow that originates at the current database shows a database link used by a propagation from the current database to another database. Replication environments use database links to send changes made to replicated objects to other databases.

• The database links used by propagations from other databases in the Oracle Streams environment to the current database for which an apply process at the current database applies the propagated messages. Each arrow that terminates at the current database shows a database link used by a propagation from another database to the current database whose messages are applied at the current database.

To view the Oracle Streams topology: 

1. In Oracle Enterprise Manager, log in to the database as the Oracle Streams administrator.

2. Go to the Database Home page.

3. Click Data Movement to open the Data Movement subpage.

4. Click Manage Replication in the Streams section.

   The Streams page appears, showing the Overview subpage.

5. Click Topology to open the Topology subpage.

You can use the Overview window to select a particular portion of the topology to view in detail and to zoom in and zoom out. You can also select a database in the topology and view the Selection Details window for information about the database.

Click the Legend link for more information about the Oracle Streams topology.