問題文
An administrator has set the aggregate target for private memory, and a batch window still drives the total usage above that number. What does the target actually promise?
選択肢
- It is a value the database tries to keep to by controlling the size of the work areas so the total can be exceeded when the value is too small for the workload.
- It is a ceiling that the database enforces by refusing to start any operation whose work area would push the total consumption above the value that an administrator has set.
- It is a reservation the database makes at startup by allocating the whole amount so the memory stays unavailable to anything else on the host.
- It is a share the database gives to each session by dividing the value by the number of processes that the instance is configured to allow.