Oracle Net services

From: <agarwalp_at_eeism.com>
Date: 5 Jul 2005 06:39:31 -0700
Message-ID: <1120570771.354072.185420@g14g2000cwa.googlegroups.com>

"multiple listeners on multiple nodes can be configured to handle client connection requests for the same database service. In the following example, sales.us.acme.com can connect to sales.us.acme.com using listeners on either sales1-server or sales2-server.
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=sales1-server)(PORT=1521))
(ADDRESS=(PROTOCOL=tcp)(HOST=sales2-server)(PORT=1521)))
(CONNECT_DATA=
(SERVICE_NAME=sales.us.acme.com)))"

Above is an extrat from Oracle Net Services Docs. I am not able to understand it properly.

1. What are Sales1 and sales2
2. What are nodes ?
3. Does it mean that a database which is at two places Sales1 and

sales2 and have a common service name.

Thanks Received on Tue Jul 05 2005 - 08:39:31 CDT