Example 6-4 Example Net Service Name Entry for an Instance Connection

In this example, the connect identifier is the same as the instance name, mycluster1.example.com. The connect descriptor uses the SCAN to locate the instance within the cluster. Clients connecting to the net service name mycluster1.example.com are connected to the mycluster1 database instance of the mycluster database. Oracle Clusterware resolves that connection to the cluster node on which the instance is running. The specific cluster node on which the instance is running is invisible to the client.

mycluster1.example.com=
  (DESCRIPTION=
    (ADDRESS=(PROTOCOL=TCP)(HOST=myscan.mycluster.example.com)(PORT=1521))
    (CONNECT_DATA=
      (SERVICE_NAME=mycluster.example.com)
      (INSTANCE_NAME=mycluster1)
    )
  )