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多选题What is true about a background engine? ()(Choose two.)AIt is a server-side PL/SQL procedure.BWhen executing a PL/SQL function activity, it will automatically ping (cache) the PL/SQL code.CIt executes deferred activities in decreasing order of their Co

题目
多选题
What is true about a background engine? ()(Choose two.)
A

It is a server-side PL/SQL procedure.

B

When executing a PL/SQL function activity, it will automatically ping (cache) the PL/SQL code.

C

It executes deferred activities in decreasing order of their Cost property value (activities with higher cost value are processed first).

D

It would fail if another background engine process is started to handle the same type of activities within the same item type.

E

During its single invocation, it processes activities that were stuck, deferred or timed out when the background engine was started.

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相似问题和答案

第1题:

在Oracle中,关于PL/SQL下列描述正确的是()。

A.PL/SQL代表PowerLanguage/SQL

B.PL/SQL不支持面向对象编程

C.PL/SQL块包括声明部分、可执行部分和异常处理部分

D.PL/SQL提供的四种内置数据类型是character,integer,float,boolean


正确答案:C

第2题:

关于PL/SQL块的执行部分下列说法正确的是?()

A.PL/SQL表达式可以包含分组函数.

B.PL/SQL表达式不可以包含SQL函数.

C.在SQL语句中部分分组函数可用.

D.以上都不对


参考答案:A

第3题:

What is true about a background engine? ()(Choose two.)

A. It is a server-side PL/SQL procedure.

B. When executing a PL/SQL function activity, it will automatically ping (cache) the PL/SQL code.

C. It executes deferred activities in decreasing order of their Cost property value (activities with higher cost value are processed first).

D. It would fail if another background engine process is started to handle the same type of activities within the same item type.

E. During its single invocation, it processes activities that were stuck, deferred or timed out when the background engine was started.


参考答案:A, E

第4题:

Which type of PL/SQL construct would you use to automatically correct the error resulting from a statement that was suspended due to a space/x7frelated problem? ()

  • A、function
  • B、package
  • C、procedure
  • D、database trigger
  • E、anonymous PL/SQL block

正确答案:D

第5题:

关于PL/SQL块的执行部分下列说法正确的是?()

  • A、PL/SQL表达式可以包含分组函数.
  • B、PL/SQL表达式不可以包含SQL函数.
  • C、在SQL语句中部分分组函数可用.
  • D、以上都不对

正确答案:A

第6题:

下列关于PL/SQL的说法正确的是()

A.PL/SQL是应用于各种数据库上的通用语言

B.PL/SQL是过程化的SQL语言

C.PL/SQL是只能在SQL*PLUS中运行

D.在PL/SQL可以直接执行所有的SQL操作


参考答案:B

第7题:

关于PL/SQL说法错误的是()。

  • A、PL/SQL是达梦数据库的过程化语言
  • B、PL/SQL并不能支持所有的SQL数据类型和SQL函数
  • C、包括一整套的数据类型、条件结构、循环结构和异常处理结构
  • D、PL/SQL可以执行SQL语句,SQL语句中也可以使用PL/SQL函数

正确答案:B

第8题:

You upgrade your Oracle database in a multiprocessor environment. As a recommended you execute thefollowing script:SQL > @utlrp.sqlWhich two actions does the script perform?()

A. Parallel compilation of only the stored PL/SQL code

B. Sequential recompilation of only the stored PL/SQL code

C. Parallel recompilation of any stored PL/SQL code

D. Sequential recompilation of any stored PL/SQL code

E. Parallel recompilation of Java code

F. Sequential recompilation of Java code


参考答案:C, E

第9题:

In your Certkiller .com database server the parameter PLSQL_CODE_TYPE has been set to NATIVE. Which object would be achieved by the setting?()

  • A、The source PL/SQL code will be stored in native machine code.
  • B、The source PL/SQL code will be stored in interpreted byte code.
  • C、The compiled PL/SQL code will be stored in native machine code.
  • D、The compiled PL/SQL code will be stored in interpreted byte code.

正确答案:C

第10题:

关于PL/SQL块的说法正确的是()

  • A、执行部分是必须的,因此声明部分也可以放到执行部分中来
  • B、PL/SQL块在执行时,是统一传输给数据库服务器进行执行的
  • C、在PL/SQL中SELECT的语句的用法与在SQL*PLUS中完全一致
  • D、匿名PL/SQL块的执行效率要高于命名PL/SQL块

正确答案:B

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