ORA-19554: error allocating device, device type: string, device name: string
Cause: The specified device could not be allocated.
Action: One or more other messages should be displayed to help pinpoint the cause of the error. Correct the error and retry the allocation.
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ORA-19554 错误是由 Oracle告诉你，无法为指定的设备（device type，device name）分配分区存储器。这是因为这个设备没有足够的分区存储器来支持该操作。