单项选择题

What is the default value for the ENABLED attribute of a job or program when it is created? （）

A. TRUE
B. FALSE
C. There is no default. It must be defined at creation time.
D.PENDING
E. NULL

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多项选择题

Which three statements are true regarding subqueries?（）

A.Subqueries can contain GROUP BY and ORDER BY clauses
B.Main query and subquery can get data from different tables
C.Main query and subquery must get data from the same tables
D.Subqueries can contain ORDER BY but not the GROUP BY clause
E.Only one column or expression can be compared between the main query and subquery
F. Multiple columns or expressions can be compared between the main query and subquery

多项选择题

Which DBMS_SCHEDULER procedure(s) can be used to alter an existing job? （）

A. SET_ATTRIBUTE_NULL
B. ALTER_JOB
C. ALTER_JOB_PARAMETERS
D. ALTER
E. SET_ATTRIBUTE

多项选择题

Which Scheduler view(s) can be queried to see which jobs are currently executing? （）

A. DBA_SCHEDULER_JOB_RUN_DETAILS
B. DBA_SCHEDULER_RUNNING_JOBS DBA
C. DBA_SCHEDULER_CURRENT_JOBS
D. DBA_SCHEDULER_JOBS DBA
E. DBA_SCHEDULER_EXECUTING_JOBS