网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
单选题
You executed the following query in your database: SELECT oldest_flashback_scn, oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()
A
The time when the last flashback operation in your database was performed.
B
The time when the first flashback operation in your database was performed.
C
A list of flashback operations performed in your database using SCN and time.
D
The approximate time and the lowest system change number (SCN) to which you can flash back your database.
参考答案
参考解析
解析:
暂无解析
更多 “单选题You executed the following query in your database: SELECT oldest_flashback_scn, oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()A The time when the last flashback operation in your database was performed.B The time when the first flashback operation in your database was performed.C A list of flashback operations performed in your database using SCN and time.D The approximate time and the lowest system change number (SCN) to which you can flash back your database.” 相关考题
考题
单选题某施工企业年存货需要量20吨,每次进货量5吨,每次订货时发生相关费用如差旅费等变动成本0.2万元,发生订货的固定成本0.4万元,每吨存货的储存变动成本为0.1万元,储存固定成本为0.3万元,缺货成本为0.35万元,材料单价为每公斤500元,企业的存货总成本是()。A
1000.55万元B
1001.2万元C
1001.75万元D
1002.1万元
考题
多选题isset( )函数的返回值说法正确的有()。A如果变量不存在,返回falseB如果变量存在且值为null返回falseC如果变量存在且值不为null返回falseD以上说法都正确
考题
多选题中国共产党的性质是()。A中国工人阶级的先锋队B中国人民和中华民族的先锋队C代表中国先进生产力的发展要求,代表中国先进文化的前进方向,代表中国最广大人民的根本利益D中国特色社会主义事业的领导核心
考题
单选题当OSPF运行在广播网络中时,需要选举DR和BDR。那么在下列哪种状态下会进行DR和BDR的选举()A
Init状态B
attempt状态C
2-way状态D
Exchange状态
考题
填空题1999年6月13日,中共中央、国务院《关于深化教育改革全面推进素质教育的决定》中提出:“全面实施素质教育要(),使受教育者坚持学习科学文化知识与加强思想修养的统一,坚持学习书本知识与投身实践的统一,坚持实现自身价值与服务祖国人民的统一,坚持树立远大理想与进行艰苦奋斗的统一。”
热门标签
最新试卷