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單項(xiàng)選擇題

A media failure has occurred. This has resulted in all the members of the next log group being rendered inaccessible to the log writer process (LGWR) at a log switch. How does this failure affect the operational database?()

A. The database allows only queries; no other statements are allowed.
B. The database re-creates the missing redo log files automatically.
C. The database continues to function normally with the existing files.
D. The database returns an error and the database instance shuts down.
E. The user sessions that generate redo logs are terminated automatically.

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