ORA-27605：Smart I/O failed as a handle could not be obtained to the cell "string" as the cell is not accessible.
错误码
错误描述：Smart I/O failed as a handle could not be obtained to the cell "string" as the cell is not accessible.
错误原因：The cell could have been unavailable.
解决方法：Ensure the cell is available. Check the network connectivity.
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