题目内容

国际结算由于涉及多种外国货币，因此汇率风险是要防范的

A. 正确
B. 错误

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You are creating a job class. You have issued the following command to create the job class： SQL> BEGIN DBMS_SCHEDULER.CREATE_JOB_CLASS（ JOB_CLASS_NAME => ’LOW_PRIORITY_CLASS’， RESOURCE_CONSUMER_GROUP => ’LOW_GROUP’， LOGGING_LEVEL => DBMS_SCHEDULER.LOGGING_FULL， LOG_HISTORY => 1200， COMMENTS => ’LOW JOB PRIORITY CLASS’）； END； SQL> / What will be the result of the above command？（）

A. The command will be executed successfully.
B. The command will fail because RESOURCE_CONSUMER_GROUP is an invalid parameter in the DBMS_SCHEDULECREATE_JOB_CLASS procedure.
C. The command will fail because LOGGING_LEVEL is an invalid parameter in the DBMS_SCHEDULECREATE_JOB_CLASS procedure.
D. The command will fail because LOG_HISTORY is an invalid parameter in the DBMS_SCHEDULECREATE_JOB_CLASS procedure.
E. The command will fail because 1200 is an invalid value for the LOG_HISTORY parameter in the DBMS_SCHEDULECREATE_JOB_CLASS procedure.

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