ocp-112

最新推荐文章于 2019-07-17 10:01:00 发布
最新推荐文章于 2019-07-17 10:01:00 发布
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分类专栏： OCP-1Z0-053 文章标签： initialization 数据库 flash oracle ocp

QUESTION NO: 112
Which two statements correctly describe the relationship among the Scheduler components: job, program,
and schedule? (Choose two)
A. A job is specified as part of a program definition
B. A program can be used in the definition of multiple jobs
C. A program and job can be specified as part of a schedule definition
D. A program and schedule can be specified as part of a job definition
Answer: B D

哪两种说法正确描述了作业、程序和时间表这三个调度组件之间的关系？

B.一个程序可以在多个作业的定义中被使用
D.一个程序和时间表可以被指定为一个作业定义的一部分

. Schedule (时间表)
通过 DBMS_SCHEDULER 包中的过程 CREATE_SCHEDULE 定义调度的开始时间，结束时间以及重复
间隔
CREATE_EVENT_SCHEDULE 过程用来创建由事件触发的时间表，由一个特定时间段内的一个事件调起
一项任务
. Program (程序)
定义了作业的形式及内容，作业形式可以是PL/SQL 匿名块，也可以是存储过程或者外部可执行文件，
执行的存储过程带有输入参数时必须以匿名块运行
. Job (作业)
通过CREATE_JOB创建一个作业，这个存储过程使用了重载，所以输入参数的选择可以非常灵活，既
可以独立设置作业的时间、内容、 Job Class，也可以引用已经存在的S

chedule 和 Program 来简化作业的创 建

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