试题详情
- 单项选择题You want to be notified when the space usage of an existing critical tablespace has reached 75% of the allocated space. Which option would you use to achieve this?()
A、run a procedure to check the tablespace space usage
B、define the warning threshold for the tablespace at 75% in Database Control
C、create a trigger to be executed when tablespace space usage reaches 75%
D、submit a job by using DBMS_JOB package to check the free space in the tablespace at regular intervals
E、define the warning threshold to be 75% for the tablespace by ALTER TABLESPACE .. ADD THRESHOLD command
- B
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