多选题Using a bitmap structure to manage database object space has several benefits over using freelist structures. Which three are benefits of managing space using automatic-segment-space managed objects？（）AIt readily responds to dynamic changes for concurr
题目
多选题
Using a bitmap structure to manage database object space has several benefits over using freelist structures. Which three are benefits of managing space using automatic-segment-space managed objects？（）
A
It readily responds to dynamic changes for concurrent access.
B
It improves performance and space utilization in a multiple-instance environment.
C
It requires fewer space related options then freelist managed structures.
D
It improves performance for SYSTEM tablespaces where a high degree of concurrency is required.