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全部博文（487）
发布时间：2018-07-09 12:04:04
3、Which structure can span multiple data files?A) a permanent tablespaceB) a bigfile tablespaceC) a temporary tablespaceD) a segmentE) an extentAnswer:ACD......【阅读全文】
发布时间：2018-07-09 11:16:29
2、Which two are true about Optimizer Statistics?? A) They do not persist across Instance restarts.? B) They are automatically updated when DDL statements execute.? C) They are gathered by the Manageability Monitor (MMON) background process.? D) They can be gathered by executing th.........【阅读全文】
发布时间：2018-07-05 14:02:00
1、.Which two are true about the Archive (ARCn) processes?? A) They automatically delete obsolete archive logs to makespace for new archive logs.? B) They are used during Instance recovery.? C) They archive redo directly from the redo log buffer.? D) They are enabled only when the database .........【阅读全文】
