On Jan 11, 2005 at 2:30 P.M., an erroneous update operation modified all the values of column LASTNAME in the EMPLOYEE table in the Scott schema to an empty string. You are the system administrator, and you want to return the original values in the table. To do so, you decided to flash back the table. Which two options can you use to flash back a table?()
A. by using Oracle Enterprise Manager
B. by issuing the FLASHBACK TABLE statement at the RMAN prompt
C. by issuing the FLASHBACK TABLE statement at the SQL prompt
D. by issuing the FLASHBACK TABLE statement at the LSNRCTL prompt
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《阿Q正传》中不许阿Q姓赵并打了他一耳光的是()。
启动PowerPoint 2003的方法有()。
A. “开始”→“所有程序”→“Microsoft Office”→“Microsoft Office PowerPoint 2003”,启动PowerPoint 2003
B. “开始”→“运行”,在文本框中输入“Powerpnt”,用命令方式启动PowerPoint 2003
C. 若桌面上有PowerPoint 2003的快捷图标,则双击该图标即可启动PowerPoint 2003
D. 打开一个PowerPoint文档即可启动PowerPoint 2003
E. 单击IE浏览器,在地址栏处输入PowerPoint 2003
网络服务人员进行售中、售后服务时,应事先准备好“五个一”指的是那“五个一”?
偏瘫患者Brunnstrom功能分级上肢Ⅵ级是指运动协调近于正常,但速度比健侧慢10秒以内。
A. 正确
B. 错误