Tag Archives: ORA-01155

ORA-01155: the database is being opened, closed, mounted or dismounted

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ORA-01155: the database is being opened, closed, mounted or dismounted
Cause: The requested operation needs the instance to be in a particular state but the state is being changed.
Action: Wait for the open, close, mount, or dismount to complete then retry the operation. If necessary, a SHUTDOWN ABORT will always work.

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