（7）已有查询文件queryone.qpr，要执行该查询文件可使用命令【7】。

以下关于“试图”的正确描述是

A)视图独立于表文件

B)视图不可更新

C)视图只能从一个表派生出来

D)视图可以删除

View the Exhibit and note the contents of V$DIAG_INFO. Which statement is true about the ADR?（）

A、 The text alert log file will be available in Diag Trace

B、 A copy alert log file will be kept in Diag Incident for every incident.

C、 The XML version of the alert log file will be available in Diag Trace.

D、 An Automatic Database Diagnostic Management (ADDM) report is generated and stored in the Health Monitor whenever an incident occurs.

虚电路在传输分组时建立__________连接。

（14）在VisualFoxPro中，下面关于属性、事件、方法叙述错误的是

A）属性用于描述对象的状态

B）方法用于表示对象的行为

C）事件代码也可以象方法一样被显式调用

D）基于同一个类产生的两个对象的属性不能分别设置自己的属性值

Which statement is true regarding virtual private catalogs?（）

A、A virtual private catalog owner can create a local stored script, and have read/write access to a global stored script.

B、The virtual private catalog owner cannot create and modify the stored scripts.

C、The set of views and synonyms that make up the virtual private catalog is stored in the schema of the RMAN recovery catalog owner.

D、To perform most of the RMAN operations, the virtual catalog owner must have the SYSDBA or SYSOPER privilege on the target database