（440）Which of the following is not a valid calendaring syntax element?

A. FREQ

B. BYHOUR

C. RUNDATE

D. INTERVAL

E. BYMINUTE

答案：（C）

解析：

查看DBMS_SCHEDULER包的定义

支持的calendar syntax:

FREQ

INTERVAL

BYMONTH

BYWEEKNO

BYYEARDAY

BYDATE

BYMONTHDAY

BYDAY

BYHOUR

BYMINUTE

BYSECOND

BYSETPOS