Answer / guest

Cause: An attempt to register a connection for event
notification failed because the event notification type
conflicts with existing registrations.

Action: Not normally visible to the user. For further
details, turn on tracing and reexecute the operation and
contact Oracle Customer Support.

Please add more information about this Error

TNS-01411: Service "string" has number instance(s).

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ORA-31471: invalid OBJECT_ID value

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PCC-00138: Result Set Cursors are not implemented in this precompiler

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