You work as a Database Administrator for Bell Ceramics Inc. The company uses Oracle database. You createa window (a scheduler object) to change the active resource plan based on defined schedules. There are many parameters, such as WINDOWS_NAME, RESOURCE_PLAN, etc. which can be used while creating a window. You set the REPEAT_INTERVAL parameter to NULL. Which of the following statements is true in such a scenario?
A. The window will open only once at the specified start date.
B. An error message will be displayed.
C. The window will not be created.
D. The windows will never open.
Answer: A
未定义REPEAT_INTERVAL参数，作业不会重复执行，只会执行一次。来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/81227/viewspace-2125050/ ，如需转载，请注明出处，否则将追究法律责任。
