题目内容

预控图要求操作者每隔（）自检一次锻件，每次检二件。

A. 30分钟
B. 45分钟
C. 60分钟
D. 120分钟

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更多问题

You decide to enable Flashback Database in your Oracle 10g database so that future recoveries will take less time than traditional recoveries. Which of the following parameters must be included in your initialization parameter file before enabling Flashback Database？（）

A. DB_RECOVERY_FILE_DEST only
B. DB_FLASHBACK_RETENTION_TARGET only
C. DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST only
DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET only
E. DB_RECOVERY_FILE_DEST_SIZE， DB_RECOVERY_FILE_DEST and
F. DB_FLASHBACK_RETENTION_TARGET

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