[单选] While creating a job class using the DBMS_SCHEDULER package， you set the logging level to LOGGING_RUNS. What would be the impact of this setting？（）

A . Oracle Scheduler would write detailed information to the job log for each run of each job in the job class.
B . Oracle Scheduler would write detailed information to the job log for the first run of each job in the job class.
C . Oracle Scheduler would write detailed information to the job log for each run of only the first job in the job class.
D . Oracle Scheduler would write detailed information for all operations performed on all jobs in the job class.

You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups， and there have been five log switches. You lost one non-system-critical data file from your database. Which method would you use to recover the data file？（） Restore all the data files and open the database。 Create the data file and performtablespacerecovery。 No need to restore any file， just recover the database。 Restore only the system data file and recover the database。 Restore only lost date file and performtablespacerecovery。下述关于药物毒性反应的叙述，正确的是（）一次用量超过剂量。长期用药。病人对药物高度敏感。病人肝或肾功能低下。病人对药物过敏。简述使用DataAdapter获取数据的步骤。明代市民文学的主体象征--小说，发源于（）。唐诗。宋词。元曲。宋元话本。新建避雷带专用引下线固定点间距应不大于2m，并保持一定的松紧度。引下线离墙距离保持（）mm左右。 2。 6。 8。 10。 While creating a job class using the DBMS_SCHEDULER package， you set the logging level to LOGGING_RUNS. What would be the impact of this setting？（）

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[单选] While creating a job class using the DBMS_SCHEDULER package， you set the logging level to LOGGING_RUNS. What would be the impact of this setting？（）

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