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5.6.1.What it is
Oracle Connection-Pooling gives you the ability to retain a pool of open connections to the database within the ODBC Driver, thereby avoiding costly connection-establishment overhead for every connection from the client. Being implemented in the ODBC Driver means you do not have to rely on the Driver Manager component implementing connection-pooling for you, and have finer control over how it behaves too.
Figure5.175.orapooling.png