While I don't profess to be an Oracle expert, I do know that each provider
implements pooling in its own way. I would not be surprised if the Oracle
provider used different ConnectionString keys or did not support pool
configuration. I would try the new ConnectionStringBuilder class...

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>I am using OracleConnection to connect to Oracle 9i Database from a
> VB.NET project the connection string has the parameters "User ID",
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>
> any clue ?