English
全部
搜索
图片
视频
地图
资讯
Copilot
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最佳匹配
最新
DOIT
14 年
用Oracle闪回功能恢复偶然丢失的数据
与Oracle 9i中的Flashback Query相似,利用回滚段信息来恢复一个或一些表到以前的一个时间点 (一个快照)。 要注意的是,Flashback Table不等于Flashback Query,Flashback Query仅仅是查询以前的一个快照点而已,并不改变当前表的状态,而Flashback Table将改变当前表及附属对象一起回到以前的时间点。
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
US sub sank Iranian warship
'Dallas' star dies
Says ‘no to the war’ in Iran
Yellowstone's geyser erupts
To impose visa restrictions
World Cup faces turmoil
NATO destroys Iranian missile
Launches campaign for Senate
Musk to face Twitter trial
Faces 162-game suspension
'Freaky Friday' producer dies
Defeated by Steve Toth
Senate to vote on war powers
Russian-flagged tanker on fire
Faces ethics investigation
UK police arrest three
Cuba charges six w/ terrorism
Mosiuoa Lekota dies at 77
UAE: Fire at Fujairah oil hub
Pulled into GOP runoff
63K jobs added in February
Clemson hires Rich Bisaccia
Misses 1st game since 2021
To release Kyler Murray
Orders evacuations in Lebanon
To compete in NC Senate race
Rams to acquire McDuffie?
Credit ratings cut by Fitch
Fed chair officially nominated
Benetti to join NBC Sports
反馈