Which data dictionary views displays the error information related to a data file, when an internal read fails on that file?()
A、V$DATAFILE
B、V$DATAFILE_HEADER
C、DBA_DATA_FILES
D、V$DBFILE
E、V$DATAFILE_ERRORS
如果要求幻灯片能够在无人操作的环境下自动播放,应该事先对演示文稿进行()
A、 自动播放
B、 排练计时
C、 存盘
D、 打包
下列不属于数据库系统特点的是( )。
A、采用特定的数据模型
B、有统一的数据控制功能
C、数据冗余度高
D、数据独立性高
After a number of days set by the parameter CONTROL_FILE_RECORD_KEEP_TIME, the information in the control file is overwritten by RMAN. What is this parameter’s default value?()
A、1 day
B、5 days
C、7 days
D、31 days
Companycom is planning a p5 595 running AIX 5L 5.3 LPARs. They would like to design the system using physical resources with maximum resource efficiency. One LPAR requires a peak load of 30 processors during the week with a low of 1 processor required on the weekend. The other LPAR requires only a single processor most of the time, but needs at least 24 processors at the beginning of the weekend to finish its weekly processing in the window allocated. Which of the following solutions is most appropriate to continuously maximize resource use for these two LPARs?()
A、Dynamic LPAR
B、Workload Manager
C、Partition Load Manager
D、Shared Processor Pools
VisualFoxPro是一种( )。
A、数据库系统
B、数据库管理系统
C、数据库
D、数据库应用系统