While shared server and MTS reduced the number of server processes, each
client still used its own physical network connection. The resources for network connections
aren??™t unlimited, so Oracle8 introduced two solutions for increasing the
capabilities of the actual network socket layer at the operating-system level:
Oracle Net connection pooling
Allows the client population to share a pool of shared physical network connections.
Idle clients transparently ???time out,??? and their network connections are
returned to the pool to be used by active clients. Each idle client maintains a virtual
connection with Oracle and will get another physical connection when
activity resumes. With the Oracle security model, authentication is separate
from a specific connection, so a single pooled connection can represent different
users at different times. Connection pooling is suitable for applications with clients
that connect but aren??™t highly active (for example, email systems).
Oracle Net Connection Manager
Reduces the number of network connections used on the database server.
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