Answer / guest

Cause: An attempt allocated a descriptor which has
previously been allocated was encountered.

Action: Use and unique descriptor name or deallocate the
descriptor before attempting to reallocate it.

Please add more information about this Error

NNO-00262: warning: cannot write checkpoint file "string"

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LSX-00343: "~S" is not nillable

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ORA-01186: file string failed verification tests

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ORA-28605: bitmap indexes cannot be reversed

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ORA-01620: no public threads are available for mounting

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