Cause: Connection is half-duplex and a full-duplex operation was attempted

ORA-12623: TNS:operation is illegal in this state

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Answer Posted / guest

Cause: Connection is half-duplex and a full-duplex operation
was attempted.

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

Please add more information about this Error

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