单项选择题
Which of the following is not a valid calendaring syntax element?（）
A. FREQ B. BYHOUR C. RUNDATE D. INTERVAL E. BYMINUTE
多项选择题 WhichtwostatementsaretrueregardingtheUSINGclauseintablejoins?（）
多项选择题 Which DBMS_SCHEDULER procedures can be used to enable a program?（）
单项选择题 When setting arguments for a job, which procedure do you use for types that cannot be implicitly converted to and from a VARCHAR2 datatype?（）
